Apply to Expansions 2025–2026
2025-09-30 16:00 - 2026-06-03 17:00 (America/New_York) | National Museum of Mathematics 635 Sixth Avenue New York, NY 10011 United States
This is the application form for the Expansions 2025-2026 program.

Backgammon and Mathematics, a minicourse hosted by Visiting Professor Dr. Arthur Benjamin — April 7 through June 9, at 6:30 pm (in person)
2026-04-07 18:30 - 2026-06-09 19:30 | 635 Sixth Avenue New York, 10011 United States
Backgammon and Mathematics

A minicourse hosted by Visiting Professor

Dr. Arthur Benjamin

Tuesdays, April 7 through June 9, 2026

6:30 pm to 7:45 pm

(in person)

Backgammon is a game of chance and strategy — and the mathematics behind it is surprisingly rich. In this engaging minicourse, MoMath Visiting Professor for Outreach Dr. Arthur Benjamin — one of only 15 backgammon grandmasters in the USA — explores how probability, risk, and expected value shape expert play. Through real game situations, you’ll sharpen your thinking about doubling, racing, and key strategic decisions, while gaining a deeper appreciation for the math that drives strong play. Recommended for participants who already understand the rules of backgammon.

In person sessions will be held on Tuesdays, from 6:30 pm to 7:45 pm ET, on the following dates:

April 7, 21, and 28
May 5, 12, and 19
June 2, and 9

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Folding Fridays, May Series — May 1 through May 29 at 4:30 pm ET (online)
2026-05-01 16:30 - 2026-05-29 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

May 2026 Series

Fridays, May 1 through May 29

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

Senior Sessions: "Hands and Minds" — Wednesday, May 27 at 2:00 pm ET
2026-05-27 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Hands and Minds"

Wednesday, May 27

2:00 pm to 2:45 pm ET

Through two entertaining and intriguing mathematical puzzles, learn about knot theory, recursive algorithms, and proofs of induction. Have fun while challenging not only your mind but also your hands!

Materials needed: scissors, glue or tape, 3 sheets of colored paper (different colors), plus a printout.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Gym (online) — Wednesday, May 27 at 4:00 pm ET
2026-05-27 16:00 - 17:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, May 27

4:00 pm to 5:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Gym (online) — Wednesday, May 27 at 7:00 pm ET
2026-05-27 19:00 - 20:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, May 27

7:00 pm to 8:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Folding Fridays — May 29 at 4:30 pm ET (online)
2026-05-29 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, May 29

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Monthly Mindbenders — Saturday, May 30 at 11:00 am ET
2026-05-30 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, May 30

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Recording of "Monthly Mindbenders" — May 30, 2026
2026-05-30 18:30 | United States
Recording of Monthly Mindbenders

with Peter Winkler

This is a recording of an online event that took place on Saturday, May 30, 2026.

Appropriate for all ages.

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

If you have not yet checked out March’s puzzle, click here to view the puzzle, and click here to watch the video introduction by Grant Sanderson (3Blue1Brown).

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

Application for 2026-2027 MoMath Long Island: an ICPS extension program at Stony Brook University
2026-06-01 09:00 - 2027-03-31 11:30 | 100 Nicolls Rd Stony Brook, NY 11794 United States
MoMath Long Island:

An ICPS extension program at Stony Brook University

Register below.

Space is limited, and students will be enrolled on a first-come, first-served basis. To secure your spot, the online registration form must be completed and payment must be received. There are absolutely no refunds once payment has been received. Also note that ineligible students — including siblings of eligible students — who apply will not receive a refund nor will they be permitted to attend.

The cost of the seven-session program, which runs from September 2026 through March 2027, is $410. In the event of a weather-related cancellation, a makeup session will be scheduled in April. (Payments by credit card will incur a 5% convenience fee.)

Acceptable forms of payment include: electronic funds transfer (EFT), check, and major credit cards; please note that a 5% convenience fee will be added to credit card payments.

To request payment by EFT, please register online and choose the "Pay later" option before emailing functions@momath.org to request EFT payment instructions. In the event the program fills before we receive your payment and we are unable to offer your child a spot, you will be notified via email.
If paying by check, you must register online and choose the "Pay later" option before mailing your check made out to "National Museum of Mathematics" to the address below. In the event the program fills and we are unable to offer your child a spot, your check will not be cashed and you will be notified via email.

Send your check payment ($410) to:

National Museum of Mathematics — MoMath

Attn: MoMath Long Island

635 Sixth Avenue

New York, NY 10010

If paying by credit card, your spot is instantly secured if you successfully complete the online registration form with a credit card payment of $430.50 ($410 plus a 5% convenience fee) followed by an email receipt confirming your registration. The online registration system will no longer accept credit card payments once enrollment capacity has been reached.

After completing the online registration form, you will need to email a scanned copy of your ICPS certificate to functions@momath.org.

Meet a Mathematician: Steven Miller — Monday, June 1, from 6:30 pm to 7:30 pm ET (online)
2026-06-01 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Meet a Mathematician:

Steven Miller

Hosted by Dr. Arthur Benjamin

Monday, June 1

6:30 pm to 7:30 pm ET

(online)

Did you ever wonder what a mathematician does all day? Or what made someone decide to become a mathematician? Or even, what a mathematician does for fun? You may be surprised by some of the answers!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes Steven Miller to the MoMath stage to share his experiences, his story, and his love of mathematics.

The Fibonacci numbers are full of beautiful patterns, surprising connections, and rich mathematical ideas. In this lively presentation, Steven Miller will explore some of the many ways these famous numbers appear in mathematics and beyond, including their connection to the golden ratio. Along the way, participants will encounter elegant properties, unexpected applications, and the sheer pleasure of mathematical discovery.

Steven Miller earned a BS in mathematics and physics from Yale and a PhD in mathematics from Princeton. His work spans many areas of mathematics, and he is especially committed to sharing the beauty, playfulness, and surprising reach of the field. He is President of the Fibonacci Association and an active advocate for mathematical outreach through camps, continuing education, and public programs.

_____________

About Meet a Mathematician

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes mathematicians to the MoMath stage to share their experiences, their stories, and their love of mathematics.

Host: Dr. Arthur Benjamin

Recording of "Meet a Mathematician: Steven Miller" — Monday, June 1, 2026
2026-06-01 18:30 | United States
Recording of Meet a Mathematician:

Steven Miller

This is a recording of a live-streamed event that took place on Monday, June 1, 2026.

Appropriate for all ages.

Did you ever wonder what a mathematician does all day? Or what made someone decide to become a mathematician? Or even, what a mathematician does for fun? You may be surprised by some of the answers!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes Steven Miller to the MoMath stage to share his experiences, his story, and his love of mathematics.

The Fibonacci numbers are full of beautiful patterns, surprising connections, and rich mathematical ideas. In this lively presentation, Steven Miller will explore some of the many ways these famous numbers appear in mathematics and beyond, including their connection to the golden ratio. Along the way, participants will encounter elegant properties, unexpected applications, and the sheer pleasure of mathematical discovery.

Steven Miller earned a BS in mathematics and physics from Yale and a PhD in mathematics from Princeton. His work spans many areas of mathematics, and he is especially committed to sharing the beauty, playfulness, and surprising reach of the field. He is President of the Fibonacci Association and an active advocate for mathematical outreach through camps, continuing education, and public programs.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org).

Backgammon and Mathematics — Tuesday, June 2 at 6:30 pm (in person)
2026-06-02 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Backgammon and Mathematics

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesdays, June 2

6:30 pm to 7:45 pm

(in person)

Backgammon is a game of chance and strategy — and the mathematics behind it is surprisingly rich. In this engaging minicourse, MoMath Visiting Professor for Outreach Dr. Arthur Benjamin — one of only 15 backgammon grandmasters in the USA — explores how probability, risk, and expected value shape expert play. Through real game situations, you’ll sharpen your thinking about doubling, racing, and key strategic decisions, while gaining a deeper appreciation for the math that drives strong play. Recommended for participants who already understand the rules of backgammon.

Want to play along like a pro? Pick up Art’s favorite inexpensive backgammon set, available from the MoMath shop: https://shop.momath.org/we-games-black-leatherette-backgammon-set-1475-x-9.html (https://shop.momath.org/we-games-black-leatherette-backgammon-set-1475-x-9.html)

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Math Gym (online) — Wednesday, June 3 at 4:00 pm ET
2026-06-03 16:00 - 17:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, June 3

4:00 pm to 5:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Gym (online) — Wednesday, June 3 at 7:00 pm ET
2026-06-03 19:00 - 20:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, June 3

7:00 pm to 8:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Senior Sessions: "Polyomino Puzzlers" — Thursday, June 4 at 2:00 pm ET
2026-06-04 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Polyomino Puzzlers"

Thursday, June 4

2:00 pm to 2:45 pm ET

You've heard of dominoes, but have you ever heard of trominoes, tetrominoes, or pentominoes? Discover the many surprising shapes you can create simply by combining same-size squares and explore various types of symmetry using these unique objects.

Materials needed: printout to be provided, pencil, and colored pen (or marker). Optional materials: scissors and tape.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Folding Fridays — June 5 at 4:30 pm ET (online)
2026-06-05 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, June 5

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Folding Fridays, June Series — June 5 through June 26 at 4:30 pm ET (online)
2026-06-05 16:30 - 2026-06-26 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

June 2026 Series

Fridays, June 5 through June 26

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

Family Fridays: "Loops, Links, and Clever Illusions" with Tiago Hirth — Friday, June 5 at 6:30 pm
2026-06-05 18:30 - 20:00 | 635 Sixth Avenue New York, 10011 United States
"Loops, Links, and Clever Illusions"

with Tiago Hirth

Friday, June 5

6:30 pm to 8:00 pm

(in person)

What do ropes, rings, and rubber bands have to do with mathematics? In this hands-on session, Dr. Tiago Hirth explores classic stage illusions through the lens of topology, the mathematics of shape and connection. Participants will experiment with knots, links, and the surprising structure of the Borromean rings, discovering how simple objects can reveal deep mathematical ideas.

Family Fridays is designed to bring family members of all ages together to enjoy a diverse array of engaging mathematical activities, promoting interest and enthusiasm among kids and adults alike.

Thanks to the generous support of Two Sigma, this program is free to attendees.

MAPS, the MoMath Annual Puzzle-hunt Series — Saturday, June 6 at 1:00 pm (near MoMath)
2026-06-06 13:00 - 17:00 | 635 Sixth Avenue New York, NY 10011 United States
MAPS, the MoMath Annual Puzzle-hunt Series

Saturday, June 6

1:00 pm to 5:00 pm

(near MoMath)

This is an in-person event that begins at the National Museum of Mathematics, located at 635 Sixth Avenue, in Manhattan. Teams will depart from the Museum to participate in puzzle-solving activities.

Teams may include up to six people, but each participant must be registered individually.

See our FAQ (faq) for more information.

Unlimited, MoMath’s mix-n-mingle program for middle and high school students; featuring MOST Fellow Inga Girshfeld — Saturday, June 6, 6:30 to 8:30 pm (in person)
2026-06-06 18:30 - 20:30 | 635 Sixth Avenue New York, 10011 United States
Unlimited

MoMath's mix-n-mingle program for middle and high school students

featuring MOST Fellow Inga Girshfeld

Saturday, June 6

6:30 pm to 8:30 pm

(in person+drop-off)

All students must be signed in and out by an adult chaperone. Students 16 and older with proof of ID may be granted an exception.

Middle and high school students, come indulge in an evening of mathematical (and parent-free!) fun at MoMath's mix-n-mingle program. Explore dynamic exhibits and enjoy fun, hands-on mathematical activities designed with you in mind. Vibe with a peer group that thinks math is cool, and don’t miss the chance to boogie down on New York City’s only interactive, light-up Voronoi dance floor. And enjoy boundless cookies and hot cocoa!

Unlimited on June 6 will begin promptly at 6:30 pm with a special program brought to you by the Mathematics Outreach Seminar and Training (MOST) program.

MOST provides opportunities for students to explore engaging math with dynamic, early-career female mathematicians. To learn more about MOST, visit momath.org/most (https://momath.org/most/). This program is made possible in part by the generous support of Peter Bloom, in memory of his mother, Naomi Bloom.

This is an in-person event at MoMath (635 Sixth Avenue, in Manhattan). By registering for the event, you agree to the Program Policies detailed below.

_____________

Program Policies

Students must be dropped off and picked up by an adult chaperone (with one exception at MoMath's discretion): An adult chaperone (a parent, guardian, or other designated provider) must be present to sign in/out each student. The adult chaperone must provide a mobile number to be contacted in the event of an emergency during the event. Students cannot sign themselves in for the event nor self-dismiss, and curbside drop-offs and pick-ups cannot be accommodated. An exception to this policy may be granted, at MoMath's sole discretion, to registered attendees ages 16 and older who can show proof of age with a valid photo ID. (MoMath reserves the right to revoke any exceptions previously granted at any time, should any concerns arise about the safety and security of the event and its participants or for any reason.)

This is strictly a students-only event: For the safety and security of the event attendees, only registered students and MoMath event staff and volunteers will be admitted into the Unlimited event space — there are no exceptions. For unregistered guests, a publicly accessible restroom is available in Madison Square Park, which is conveniently located across the street from the Museum. During the event, adults may stand in the lobby or leave the Museum to return no later than 8:30 pm to pick up their child(ren). If you intend to pick up your child before the event ends, it is recommended that you inform a MoMath staff member at drop-off as well as coordinate directly with your child via their mobile so that your child knows to come to the lobby at the designated time.

MoMath's photography and media releases: By registering for this event, all participants inherently agree to the terms and conditions of MoMath's standard photograph permission and release form (https://momath.org/home/policies-for-events/). All participants of any event at MoMath must agree to these terms. If you would like to request that your child is not photographed during an Unlimited event, please discuss this at drop-off with the manager in charge. While MoMath may not be able to accommodate all requests, it is uncommon for MoMath to take event photographs of Unlimited sessions and/or we will try to not include your child in photos, if possible.

Appropriate behavior: All Unlimited students and adult chaperones are expected to exhibit good behavior and compliance with program policies to ensure a positive experience for everyone. At its sole discretion, MoMath may remove a student from the event for behavioral reasons or for noncompliance with policies and their parent/guardian will be contacted for immediate pick-up. If a student is removed from the event, for either a single event or for all future Unlimited events, no refund or credit will be issued.

In the event of an emergency: To urgently reach the Unlimited event staff during the event, you may call (520) 432-0958. For non-urgent or all other matters, please contact MoMath at (212) 542-0566 during regular business hours or email functions@momath.org.

6-7 – Sunday, June 7, from 2:00 pm to 3:07 pm
2026-06-07 14:00 - 15:07 | 635 Sixth Avenue New York, 10011 United States
6-7

Sunday, June 7

2:00 pm to 3:07 pm

(in person)

Celebrate 6/7 with a special 67-minute program featuring mathematician Dr. Arthur Benjamin. Dr. Benjamin will open with a brief presentation on “The Magic of 6 and 7,” then guests can continue the fun with Connect 4 play on the game’s classic 6-by-7 grid. This program is free with Museum admission.

All registered children under 16 must be accompanied by a registered (paying) adult. MoMath reserves the right to refuse event admission without refund or credit to children under 16 without an adult chaperone.

Tween Primes: The Fabulous Fibonacci Numbers by Alfred S. Posamentier — Sunday, June 7, at 5:15 pm (in person)
2026-06-07 17:15 - 18:15 | 635 Sixth Avenue New York, 10011 United States
Tween Primes,

the MoMath book club for tweens and teens

A discussion of

The Fabulous Fibonacci Numbers

by Alfred S. Posamentier

Hosted by Dr. Arthur Benjamin

Sunday, June 7

5:15 pm to 6:15 pm

(in person+drop-off)

Are you a budding mathematician between the ages of 10 and 17 who loves reading? Would you like to make new friends your age who share your passion for mathematics and literature? Join us in person for Tween Primes, the MoMath book club for tweens and teens.

Join host and MoMath’s 2025–2026 Visiting Professor for Public Outreach Dr. Arthur Benjamin for a book club discussion of The Fabulous Fibonacci Numbers by Alfred S. Posamentier.

The most ubiquitous, and perhaps the most intriguing, number pattern in mathematics is the Fibonacci sequence. In this simple pattern beginning with two ones, each succeeding number is the sum of the two numbers immediately preceding it (1, 1, 2, 3, 5, 8, 13, 21, ad infinitum). Far from being just a curiosity, this sequence recurs in structures found throughout nature — from the arrangement of whorls on a pinecone to the branches of certain plant stems. All of which is astounding evidence for the deep mathematical basis of the natural world. With admirable clarity, two veteran math educators take us on a fascinating tour of the many ramifications of the Fibonacci numbers.

This is an in-person event at MoMath (635 Sixth Avenue).

Starring Math, featuring Hunting Yellow Pigs with Film Director Jon Roberts and Camp Director Paul Phillips — Monday, June 8, at 6:30 pm ET (online)
2026-06-08 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Starring Math, featuring

Hunting Yellow Pigs

Hosted by Dr. Arthur Benjamin

with Film Director Jon Roberts

and Camp Director Paul Phillips

Monday, June 8

6:30 pm to 7:30 pm ET

(online)

Join host Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, Film Director Jon Roberts, and Camp Director Paul Phillips for an engaging discussion of the documentary Hunting Yellow Pigs.

Hunting Yellow Pigs is a warm, behind-the-scenes portrait of the Hampshire College Summer Studies in Mathematics, a renowned program that invites high school students to experience math as a creative, joyful, and communal pursuit. Directed by Jon Roberts, the film centers on the program’s founder, David Kelly, and the playful traditions — including Yellow Pig Day — that capture how mathematicians think, discover, and delight in ideas.

For the fullest experience, participants are encouraged to be familiar with the documentary in advance of the event.

_____________

MoMath’s 2025–2026 Visiting Professor Dr. Arthur Benjamin curates a monthly dive into the many ways mathematics inspires — and hides inside — film, theater, music, magic, juggling, and more. Each session features an hour-long conversation with Dr. Benjamin and special guests. Some months you’ll watch the selected movie or performance on your own, then join a lively discussion; other months the performer will appear live, ready to share insights and answer questions. Discover how creative minds weave math into stories, staging, and spectacle, and leave with fresh ways to see the connections between performance and mathematics.

Recording of "Starring Math" — June 8, 2026
2026-06-08 18:30 | United States
Starring Math, featuring

Hunting Yellow Pigs

Hosted by Dr. Arthur Benjamin

with Film Director Jon Roberts

and Camp Director Paul Phillips

This is a recording of a live-streamed event that took place on June 8, 2026.

Join host Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, Film Director Jon Roberts, and Camp Director Paul Phillips for an engaging discussion of the documentary Hunting Yellow Pigs.

Hunting Yellow Pigs is a warm, behind-the-scenes portrait of the Hampshire College Summer Studies in Mathematics, a renowned program that invites high school students to experience math as a creative, joyful, and communal pursuit. Directed by Jon Roberts, the film centers on the program’s founder, David Kelly, and the playful traditions — including Yellow Pig Day — that capture how mathematicians think, discover, and delight in ideas.

For the fullest experience, participants are encouraged to be familiar with the documentary in advance of the event.

_____________

MoMath’s 2025–2026 Visiting Professor Dr. Arthur Benjamin curates a monthly dive into the many ways mathematics inspires — and hides inside — film, theater, music, magic, juggling, and more. Each session features an hour-long conversation with Dr. Benjamin and special guests. Some months you’ll watch the selected movie or performance on your own, then join a lively discussion; other months the performer will appear live, ready to share insights and answer questions. Discover how creative minds weave math into stories, staging, and spectacle, and leave with fresh ways to see the connections between performance and mathematics.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (http://videos.momath.org/).

Senior Sessions: "Play like a Mathematician: Game, SET, Math" — Tuesday, June 9 at 2:00 pm ET
2026-06-09 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Play like a Mathematician: Game, SET, Math"

Tuesday, June 9

2:00 pm to 2:45 pm ET

Based on set theory and combinatorics, SET is a fast-paced card game where players race to identify sets of three cards that follow specific rules. Join us to play a few rounds of SET, where, in order to win, you will be challenged to recognize many fun patterns!

Materials needed: SET card game (optional)

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Backgammon and Mathematics — Tuesday, June 9 at 6:30 pm (in person)
2026-06-09 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Backgammon and Mathematics

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesdays, June 9

6:30 pm to 7:45 pm

(in person)

Backgammon is a game of chance and strategy — and the mathematics behind it is surprisingly rich. In this engaging minicourse, MoMath Visiting Professor for Outreach Dr. Arthur Benjamin — one of only 15 backgammon grandmasters in the USA — explores how probability, risk, and expected value shape expert play. Through real game situations, you’ll sharpen your thinking about doubling, racing, and key strategic decisions, while gaining a deeper appreciation for the math that drives strong play. Recommended for participants who already understand the rules of backgammon.

Want to play along like a pro? Pick up Art’s favorite inexpensive backgammon set, available from the MoMath shop: https://shop.momath.org/we-games-black-leatherette-backgammon-set-1475-x-9.html (https://shop.momath.org/we-games-black-leatherette-backgammon-set-1475-x-9.html)

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Math Encounters: "How Big is Infinity? How Big is Your Mind?" featuring Lew Ludwig — Wednesday, June 10 at 4:00 pm
2026-06-10 16:00 - 17:30 | 635 Sixth Avenue New York, 10011 United States
Math Encounters:

"How Big is Infinity? How Big is Your Mind?"

featuring Lew Ludwig

Wednesday, June 10

4:00 pm to 5:30 pm

(in person)

Infinity is one of the most mysterious ideas in human thought — it’s not a number you can calculate or a destination you can reach. Join Lew Ludwig, Professor of Mathematics at Denison University, for a journey into this elusive concept along with a surprising question: are there actually different sizes of infinity? What could “size” mean when nothing ever ends, and how can we compare two quantities that are both infinite? Through hands-on activities and guided inquiry, we’ll explore these seemingly impossible ideas and reveal what human reasoning can uncover about the infinite. No advanced mathematics is required — just curiosity and an open mind.

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics. This program is funded by Simons Foundation International and administered by the Simons Foundation’s Science, Society & Culture division.

Math Encounters: "How Big is Infinity? How Big is Your Mind?" featuring Lew Ludwig — Wednesday, June 10 at 7:00 pm
2026-06-10 19:00 - 20:30 | 635 Sixth Avenue New York, 10011 United States
Math Encounters:

"How Big is Infinity? How Big is Your Mind?"

featuring Lew Ludwig

Wednesday, June 10

7:00 pm to 8:30 pm

(in person)

Infinity is one of the most mysterious ideas in human thought — it’s not a number you can calculate or a destination you can reach. Join Lew Ludwig, Professor of Mathematics at Denison University, for a journey into this elusive concept along with a surprising question: are there actually different sizes of infinity? What could “size” mean when nothing ever ends, and how can we compare two quantities that are both infinite? Through hands-on activities and guided inquiry, we’ll explore these seemingly impossible ideas and reveal what human reasoning can uncover about the infinite. No advanced mathematics is required — just curiosity and an open mind.

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics. This program is funded by Simons Foundation International and administered by the Simons Foundation’s Science, Society & Culture division.

Free Play – Thursday, June 11, from 3:00 pm to 7:00 pm (in person)
2026-06-11 15:00 - 19:00 | 635 Sixth Avenue New York, NY 10011 United States
Free Play

Thursday, June 11

3:00 pm to 7:00 pm

(in person)

During Free Play, general admission to MoMath will be completely free!

Free admission is available on a first-come, first-served basis. Please note that registration is not a guarantee of entry, and all attendees, including children, must be registered. An early arrival is strongly encouraged, as MoMath will limit entry once capacity is reached.

Attendance during Free Play implies acknowledgment of adherence to the MoMath General Policies for Events and Photograph Release (https://momath.org/home/policies-for-events/), on behalf of all individuals present.

Folding Fridays — June 12 at 4:30 pm ET (online)
2026-06-12 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, June 12

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Krazy Kahoot — Saturday, June 13, at 3:00 pm ET (online)
2026-06-13 15:00 - 16:00 | MoMath Online (Zoom link will be emailed after registration) United States
Krazy Kahoot, MoMath's family quiz show!

Saturday, June 13

3:00 pm to 4:00 pm ET

(online)

Join MoMath’s favorite math quizmaster Steve Sherman for a fun-filled family game bursting with a wide range of entertaining questions for ages 10 to 110 — mathematically precocious children under ten are always welcome. Is your family up for this lively challenge?!

To fully participate in this program, you will need a smartphone, tablet, or personal computer with internet access. Please open Kahoot.it (https://Kahoot.it) on your computer or download the app on your smart device. During the event, you will receive a PIN to access the game on your computer or app.

Krazy Kahoot is appropriate for all ages, and families are encouraged to work together, but students under the age of 10 may find the questions challenging.

This is an online-only event; all registrants will be participating remotely. The session will open just before the listed start time. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

The First MoMath Backgammon Tournament — Sunday, June 14 at 12:30 pm (in person)
2026-06-14 12:30 | 635 Sixth Avenue New York, NY 10011 United States
The First MoMath Backgammon Tournament

Sunday, June 14, at 12:30 pm

(in person)

Roll the dice and make your move at MoMath’s first-ever Backgammon Tournament! Players of all levels are invited to enjoy an afternoon of strategy, chance, and friendly competition in one of the world’s oldest games.! Compete for prizes, meet fellow backgammon enthusiasts, and experience the mathematical elegance behind every roll.

Volumes, the MoMath book club: What Are the Odds? author Mark Prell — Monday, June 15, at 6:30 pm ET (online)
2026-06-15 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Volumes, the MoMath book club

A discussion of

What Are the Odds?: A Statistical Guide to Certainty in an Uncertain World

Hosted by Dr. Arthur Benjamin

with author Mark Prell

Monday, June 15

6:30 pm to 7:30 pm ET

(online)

Love mathematics and books? Looking for a stimulating and fun discussion? Volumes, the MoMath book club, is just the thing for you! This monthly reading group is designed especially for those interested in mathematics and science and how they affect our lives. No prior math or science background is necessary.

Join host Dr. Arthur Benjamin, MoMath’s 2025–2026 Visiting Professor for Public Outreach, for an engaging book club discussion of What Are the Odds?: A Statistical Guide to Certainty in an Uncertain World with author Mark Prell.

We live in an uncertain world. Morning commutes, natural disasters, global pandemics — our lives are riddled with events whose outcomes we can never know with certainty. In What Are the Odds? Mark Prell reveals how statistical thinking empowers us to navigate this uncertainty with clarity and confidence. Whether weighing the benefits of different medications or deciding if home insurance is worth the steep cost, Prell shows that just as important as asking what the data says is asking how reliable it is. Describing the core concepts and methods of statistical thinking, he teaches us how to extract meaningful information from raw data, and crucially, to recognize data that’s been cherry-picked, fabricated, or is simply wrong.

Looking for the MoMath book club designed specially for tweens and teens (ages 10–17)? Check out tweenprimes.momath.org (https://tweenprimes.momath.org/)!

Recording of Volumes, the MoMath book club: "What Are the Odds?" — June 15, 2026
2026-06-15 18:30 | United States
Recording of Volumes,

the MoMath book club

A discussion of

What Are the Odds?: A Statistical Guide to Certainty in an Uncertain World

Hosted by Dr. Arthur Benjamin

with author Mark Prell

This is a recording of a live-streamed event that took place on Monday, June 15, 2026.

Love mathematics and books? Looking for a stimulating and fun discussion? Volumes, the MoMath book club, is just the thing for you! This monthly reading group is designed especially for those interested in mathematics and science and how they affect our lives. No prior math or science background is necessary.

Join host Dr. Arthur Benjamin, MoMath’s 2025–2026 Visiting Professor for Public Outreach, for an engaging book club discussion of What Are the Odds?: A Statistical Guide to Certainty in an Uncertain World with author Mark Prell.

We live in an uncertain world. Morning commutes, natural disasters, global pandemics — our lives are riddled with events whose outcomes we can never know with certainty. In What Are the Odds? Mark Prell reveals how statistical thinking empowers us to navigate this uncertainty with clarity and confidence. Whether weighing the benefits of different medications or deciding if home insurance is worth the steep cost, Prell shows that just as important as asking what the data says is asking how reliable it is. Describing the core concepts and methods of statistical thinking, he teaches us how to extract meaningful information from raw data, and crucially, to recognize data that’s been cherry-picked, fabricated, or is simply wrong.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org).

Senior Sessions: "Connect the Dots" — Wednesday, June 17 at 2:00 pm ET
2026-06-17 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Connect the Dots"

Wednesday, June 17

2:00 pm to 2:45 pm ET

Explore surprising connections between geometry and arithmetic. Using a simple dot-connecting game, discover how divisibility determines emerging shapes — triangles, stars, hexagons, and more! Discover colorful patterns and ideas for creating string art.

Materials needed: pencil, paper, and printouts to be provided.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (http://videos.momath.org).

Equilibrium, game night for adults at MoMath – Thursday, June 18, at 6:30 pm (in person)
2026-06-18 18:30 - 20:00 | 635 Sixth Avenue New York, NY 10011 United States
Equilibrium, game night for adults at MoMath

Thursday, June 18

6:30 pm to 8:00 pm

(in person)

Join MoMath for a fun-filled, adult evening of mathematically-rich games! Whether you come alone or bring a friend, you'll enjoy playing games and connecting with mathematically-inclined adults, all while enjoying the unique evening atmosphere at the premier math museum in North America.

Please note that Equilibrium is an event designed specifically for adults. Children will not be admitted and tickets purchased for children will not be eligible for refund.

Folding Fridays — June 19 at 4:30 pm ET (online)
2026-06-19 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, June 19

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Early Registration for Transformations 2026 Summer Program — Deltas
2026-06-22 09:00 - 2026-08-28 15:00 | National Museum of Mathematics 635 Sixth Avenue New York, NY 10010 United States
Transformations 2026

Summer Camp Registration

Students will experience the richness of mathematics with America's only museum dedicated to math. Through interactive education sessions, creative projects, and supervised independent activities, math will come alive for each and every participant.

The Museum offers a mixed-ages camp with attentive camp counselors at every level. The Epsilons level for rising first through third graders focuses on instilling a love for mathematics. The Deltas level for rising fourth through sixth graders allows campers to fully explore their mathematical interests. The Gammas level for rising seventh through ninth graders will provide a deep dive into advanced mathematical knowledge and skills.

MoMath’s talented staff will keep campers engaged and entertained with grade-appropriate activities, and the program’s curriculum will feature hands-on learning in a warm and friendly atmosphere. With Madison Square Park just outside MoMath’s front door, there are even opportunities for fun in the sun. Weather permitting, campers spend the lunch period in the park every day.

Whether your camper is already passionate about mathematics or just starting to explore its wonders, Transformations will expose your camper to cool areas of mathematics not covered in school and stoke the flames for a lifelong appreciation of mathematics.

Early Registration for Transformations 2026 Summer Program — Epsilons
2026-06-22 09:00 - 2026-08-28 15:00 | National Museum of Mathematics 635 Sixth Avenue New York, NY 10010 United States

QED, with special guests Elizabeth Bouzarth, John Harris, and Kevin Hutson — Monday, June 22, at 6:30 pm ET (online)
2026-06-22 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
QED: a conversation about

math and math education

Hosted by Dr. Arthur Benjamin

with special guests Elizabeth Bouzarth,

John Harris, and Kevin Hutson

Monday, June 22

6:30 pm to 7:30 pm ET

(online)

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes Elizabeth Bouzarth, John Harris, and Kevin Hutsson to the MoMath stage for an engaging conversation about math and math education.

_____________

About the QED monthly series

Host: Dr. Arthur Benjamin

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, each month as he welcomes special guests to the MoMath stage for engaging conversations about math and math education.

_____________

These are online-only events. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Recording of "QED, a conversation about math and math education" — June 22, 2026
2026-06-22 18:30 | United States
Recording of QED, a conversation about

math and math education

Hosted by Dr. Arthur Benjamin

with special guests Elizabeth Bouzarth,

John Harris, and Kevin Hutson

This is a recording of a live-streamed event that took place on June 22, 2026.

Appropriate for parents.

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes guests Elizabeth Bouzarth, John Harris, and Kevin Hutson to the MoMath stage for an engaging conversation about math and math education.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

Focus! with Alex Kontorovich — Wednesday, June 24 at 2:00 pm ET
2026-06-24 14:00 - 15:00 | MoMath Online (Zoom link will be emailed after registration) United States
Focus!

with Alex Kontorovich

Wednesday, June 24, at 2:00 pm ET

(online)

This is an online-only event; all registrants will be participating remotely.

Recording of "Focus!" — June 24, 2026
2026-06-24 14:00 | United States
Recording of Focus!

with Alex Kontorovich

This is a recording of an online event that took place on June 24, 2026.

Appropriate for ages 13 and up.

MoMath is moving. Its spectacular new home at 635 Sixth Avenue opens this winter with more than two dozen original new exhibits. Each month, one new exhibit will be highlighted as we share its story, from conception to design to fabrication. Hear the back stories from the creators and builders of the exhibits, and discover the fascinating mathematics behind the magic.

For the April’s Focus! session, Alex Kontorovich will present on Fourier Figures.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

Game On — featuring Steve Sherman – Wednesday, June 24 at 6:30 pm (in person)
2026-06-24 18:30 - 20:00 | 635 Sixth Avenue New York, NY 10011 United States
Game On

Featuring Steve Sherman

Wednesday, June 24

6:30 pm to 8:00 pm

(in person)

Don’t miss this special opportunity to meet MoMath fan favorite Steve Sherman — in person! Known for his high-energy, wildly fun online sessions in the Loving Math series and in the monthly Krazy Kahoot challenges, Steve brings his signature blend of humor, excitement, and mathematical magic to a rare live event at MoMath. Join the fun with hands-on games, interactive puzzles, and playful problem solving — plus the chance to win some prizes.

Ideal for ages 6 to 11.

Senior Sessions: "Rep-tiles" — Thursday, June 25, at 2:00 pm ET
2026-06-25 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Rep-tiles"

Thursday, June 25

2:00 pm to 2:45 pm ET

Come discover mathematical rep-tiles, geometric shapes that can tile into repetitions of themselves. Learn about scaling, special tessellations, and mathematical proofs, while solving fun rep-tiles puzzles.

Materials needed: pencil, paper, printouts to be provided, and scissors (to cut out shapes prior to session)

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Folding Fridays — June 26 at 4:30 pm ET (online)
2026-06-26 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, June 26

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Monthly Mindbenders — Saturday, June 27 at 11:00 am ET
2026-06-27 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, June 27

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Recording of "Monthly Mindbenders" — June 27, 2026
2026-06-27 18:30 | United States
Recording of Monthly Mindbenders

with Peter Winkler

This is a recording of an online event that took place on June 27, 2026.

Appropriate for all ages.

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

If you have not yet checked out March’s puzzle, click here to view the puzzle, and click here to watch the video introduction by Grant Sanderson (3Blue1Brown).

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

Free Play – Sunday, June 28, from 10:00 am to 1:00 pm (in person)
2026-06-28 10:00 - 13:00 | 635 Sixth Avenue New York, NY 10011 United States
Free Play

Sunday, June 28

10:00 am to 1:00 pm

(in person)

During Free Play, general admission to MoMath will be completely free!

Free admission is available on a first-come, first-served basis. Please note that registration is not a guarantee of entry, and all attendees, including children, must be registered. An early arrival is strongly encouraged, as MoMath will limit entry once capacity is reached.

Attendance during Free Play implies acknowledgment of adherence to the MoMath General Policies for Events and Photograph Release (https://momath.org/home/policies-for-events/), on behalf of all individuals present.

Free Play – Saturday, June 28, from 11:00 am to 2:00 pm (in person)
2026-06-28 11:00 - 14:00 | 635 Sixth Avenue New York, NY 10011 United States
Free Play

Saturday, June 28

11:00 am to 2:00 pm

(in person)

During Free Play, general admission to MoMath will be completely free! If you haven’t been to MoMath on Fifth (225 Fifth Avenue) — and if you have friends who have never been to the Museum, there’s no better time to bring them along!

Free admission is available on a first-come, first-served basis. Please note that registration is not a guarantee of entry, and all attendees, including children, must be registered. An early arrival is strongly encouraged, as MoMath will limit entry once capacity is reached.

Attendance during Free Play implies acknowledgment of adherence to the MoMath General Policies for Events and Photograph Release (https://momath.org/home/policies-for-events/), on behalf of all individuals present.

Transformations 2026 Summer Program — Deltas
2026-06-29 09:00 - 2026-09-04 15:00 | National Museum of Mathematics 635 Sixth Avenue New York, NY 10011 United States
Transformations 2026

Summer Camp Registration

Students will experience the richness of mathematics with America's only museum dedicated to math. Through interactive education sessions, creative projects, and supervised independent activities, math will come alive for each and every participant.

The Museum offers a mixed-ages camp with attentive camp counselors at every level. The Epsilons level for rising first through third graders focuses on instilling a love for mathematics. The Deltas level for rising fourth through sixth graders allows campers to fully explore their mathematical interests. The Gammas level for rising seventh through ninth graders will provide a deep dive into advanced mathematical knowledge and skills.

MoMath’s talented staff will keep campers engaged and entertained with grade-appropriate activities, and the program’s curriculum will feature hands-on learning in a warm and friendly atmosphere.

Whether your camper is already passionate about mathematics or just starting to explore its wonders, Transformations will expose your camper to cool areas of mathematics not covered in school and stoke the flames for a lifelong appreciation of mathematics.

Transformations 2026 Summer Program — Epsilons
2026-06-29 09:00 - 2026-09-04 15:00 | National Museum of Mathematics 635 Sixth Avenue New York, NY 10011 United States

Transformations 2026 Summer Program — Gammas
2026-06-29 09:00 - 2026-09-04 15:00 | National Museum of Mathematics 635 Sixth Avenue New York, NY 10011 United States

Ask a Mathematician — Anything! (online) — Monday, June 29, at 6:30 pm ET
2026-06-29 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Ask a Mathematician — Anything!

Featuring Dr. Arthur Benjamin

Monday, June 29

6:30 pm to 7:30 pm ET

(online)

Ever wanted to ask a mathematician something, maybe about a curious new idea you have, or a concept you'd like to understand better? Don't know whom to ask? Here's your chance!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, for this one-hour, interactive session. Come with your own questions, or just join to listen in. All are welcome, and no question is too basic (although plenty may be too hard!)

Recording of "Ask a Mathematician — Anything!" — June 29, 2026
2026-06-29 18:30 | United States
Recording of Ask a Mathematician — Anything! Featuring Dr. Arthur Benjamin

This is a recording of an online event that took place on Monday, June 29, 2026.

Appropriate for all ages.

Ever wanted to ask a mathematician something, maybe about a curious new idea you have, or a concept you'd like to understand better? Don't know whom to ask? Here's your chance!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, for this one-hour, interactive session. Come with your own questions, or just join to listen in. All are welcome, and no question is too basic (although plenty may be too hard!)

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

Senior Sessions: "Magic Squares" — Tuesday, June 30 at 2:00 pm ET
2026-06-30 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Magic Squares"

Tuesday, June 30

2:00 pm to 2:45 pm ET

Magic squares are a set of puzzles that have long fascinated many of the world’s most brilliant thinkers. Dating back more than 4,000 years to ancient China, magic squares are those in which the sums of each column, row, and diagonal are always “magically” the same number! Discover surprising strategies to solve these mysterious puzzles and learn how to create your very own magic square.

Materials needed: paper and pencil

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Fun with Fibonacci and the Glorious Golden Ratio — Tuesday, June 30 at 6:30 pm (in person)
2026-06-30 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Fun with Fibonacci and the Glorious Golden Ratio

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesday, June 30

6:30 pm to 7:45 pm

(in person)

[[DESCRIPTION]]

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Fun with Fibonacci and the Glorious Golden Ratio, a minicourse hosted by Visiting Professor Dr. Arthur Benjamin — June 30 through July 21, at 6:30 pm (in person)
2026-06-30 18:30 - 2026-07-21 19:45 | 635 Sixth Avenue New York, 10011 United States
Fun with Fibonacci and the Glorious Golden Ratio

A minicourse hosted by Visiting Professor

Dr. Arthur Benjamin

Tuesdays, June 30 through July 21, 2026

6:30 pm to 7:45 pm

(in person)

[[DESCRIPTION]]

In person sessions will be held on Tuesdays, from 6:30 pm to 7:45 pm ET, on the following dates:

June 30
July 7, 14, and 21

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Recording of "QED, a conversation about math and math education" — July 2, 2026
2026-07-02 18:30 | United States
Recording of QED, a conversation about

math and math education

Hosted by Dr. Arthur Benjamin

with special guest Ji Son

This is a recording of a live-streamed event that took place on July 2, 2026.

Appropriate for parents.

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes guest Ji Son to the MoMath stage for an engaging conversation about math and math education.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org/).

QED, with special guest Ji Son — Thursday, July 2, at 6:30 pm ET (online)
2026-07-02 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
QED: a conversation about

math and math education

Hosted by Dr. Arthur Benjamin

with special guest Ji Son

Thursday, July 2

6:30 pm to 7:30 pm ET

(online)

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, as he welcomes Ji Son to the MoMath stage for an engaging conversation about math and math education.

_____________

About the QED monthly series

Host: Dr. Arthur Benjamin

Join Dr. Arthur Benjamin, MoMath’s 2025-2026 Visiting Professor for Public Outreach, each month as he welcomes special guests to the MoMath stage for engaging conversations about math and math education.

_____________

These are online-only events. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Recording of Volumes, the MoMath book club: "Math Decoded" — July 6, 2026
2026-07-06 18:30 | United States
Recording of Volumes,

the MoMath book club

A discussion of

Math Decoded: Explaining the Why Behind the Numbers and How They Operate

Hosted by Dr. Arthur Benjamin

with author James Tanton

This is a recording of a live-streamed event that took place on Monday, July 6, 2026.

Love mathematics and books? Looking for a stimulating and fun discussion? Volumes, the MoMath book club, is just the thing for you! This monthly reading group is designed especially for those interested in mathematics and science and how they affect our lives. No prior math or science background is necessary.

Join host Dr. Arthur Benjamin, MoMath’s 2025–2026 Visiting Professor for Public Outreach, for an engaging book club discussion of Math Decoded: Explaining the Why Behind the Numbers and How They Operate with author James Tanton.

Mathematics often feels like a collection of disconnected rules, but what if you could uncover their underlying story? In Math Decoded: Explaining the Why Behind the Numbers and How They Operate, author James Tanton provides educators with a compelling and accessible guide to understanding the logic, purpose, and poetry behind numbers and arithmetic.

Move away from simply teaching formulas and procedures. Instead, discover the coherent and human story of mathematics that will enliven your classroom and deepen your own mathematical knowledge.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org).

Volumes, the MoMath book club: Math Decoded with author James Tanton — Monday, July 6, at 6:30 pm ET (online)
2026-07-06 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Volumes, the MoMath book club

A discussion of

Math Decoded: Explaining the Why Behind the Numbers and How They Operate

Hosted by Dr. Arthur Benjamin

with author James Tanton

Monday, July 6

6:30 pm to 7:30 pm ET

(online)

Love mathematics and books? Looking for a stimulating and fun discussion? Volumes, the MoMath book club, is just the thing for you! This monthly reading group is designed especially for those interested in mathematics and science and how they affect our lives. No prior math or science background is necessary.

Join host Dr. Arthur Benjamin, MoMath’s 2025–2026 Visiting Professor for Public Outreach, for an engaging book club discussion of Math Decoded: Explaining the Why Behind the Numbers and How They Operate with author James Tanton.

Mathematics often feels like a collection of disconnected rules, but what if you could uncover their underlying story? In Math Decoded: Explaining the Why Behind the Numbers and How They Operate, author James Tanton provides educators with a compelling and accessible guide to understanding the logic, purpose, and poetry behind numbers and arithmetic.

Move away from simply teaching formulas and procedures. Instead, discover the coherent and human story of mathematics that will enliven your classroom and deepen your own mathematical knowledge.

Looking for the MoMath book club designed specially for tweens and teens (ages 10–17)? Check out tweenprimes.momath.org (https://tweenprimes.momath.org/)!

Fun with Fibonacci and the Glorious Golden Ratio — Tuesday, July 7 at 6:30 pm (in person)
2026-07-07 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Fun with Fibonacci and the Glorious Golden Ratio

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesday, July 7

6:30 pm to 7:45 pm

(in person)

[[DESCRIPTION]]

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Senior Sessions: "Hailstone Numbers" — Wednesday, July 8 at 2:00 pm ET
2026-07-08 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Hailstone Numbers"

Wednesday, July 8

2:00 pm to 2:45 pm ET

Take any positive integer and follow a few simple steps... repeat. You will get a wild sequence that jumps up and down — just like hailstones in a storm — until it mysteriously settles at 1. But does every number eventually land there? That’s the puzzle behind the Collatz Conjecture, an unsolved math mystery that’s stumped even the greatest minds. Legendary Hungarian mathematician Paul Erdős once said, “Mathematics is not ready for such problems.” Join us to experiment, explore, and perhaps even find your own path through this number riddle!

Materials needed: paper and pencil

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Encounters: "Seeing Is Deceiving: The Geometry of Visual Illusion" featuring Annalisa Crannell — Wednesday, July 8 at 4:00 pm
2026-07-08 16:00 - 17:30 | 635 Sixth Avenue New York, 10011 United States
Math Encounters:

"Seeing Is Deceiving: The Geometry of Visual Illusion"

featuring Annalisa Crannell

Wednesday, July 8

4:00 pm to 5:30 pm

(in person)

Perspective geometry helps artists create convincing depictions of the three-dimensional world, but the same mathematical principles can also produce astonishing illusions. Explore a gallery of visual surprises, from cinematic special effects to hidden images and impossible figures in the spirit of Escher, revealing how geometry can shape not only what we see, but what we think we see.

Special introduction by Doug Dwyer, Bank of America.

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics. This program is funded by Simons Foundation International and administered by the Simons Foundation’s Science, Society & Culture division.

Math Encounters: "Seeing Is Deceiving: The Geometry of Visual Illusion" featuring Annalisa Crannell — Wednesday, July 8 at 7:00 pm
2026-07-08 19:00 - 20:30 | 635 Sixth Avenue New York, 10011 United States
Math Encounters:

"Seeing Is Deceiving: The Geometry of Visual Illusion"

featuring Annalisa Crannell

Wednesday, July 8

7:00 pm to 8:30 pm

(in person)

Perspective geometry helps artists create convincing depictions of the three-dimensional world, but the same mathematical principles can also produce astonishing illusions. Explore a gallery of visual surprises, from cinematic special effects to hidden images and impossible figures in the spirit of Escher, revealing how geometry can shape not only what we see, but what we think we see.

Special introduction by Doug Dwyer, Bank of America.

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics. This program is funded by Simons Foundation International and administered by the Simons Foundation’s Science, Society & Culture division.

MoMath x Code4NYC — July 10 through July 31, at 3:30 pm (in person)
2026-07-10 15:30 - 2026-07-31 16:30 | 635 Sixth Avenue New York, 10011 United States
MoMath x Code4NYC

For ages 11–14

Fridays, July 10 through July 31

3:30 pm to 4:30 pm

(in person)

MoMath and Code4NYC invite middle school students to explore the fundamentals of coding in this beginner-friendly, four-week workshop. Students will learn core programming concepts such as strings, variables, and lists while building confidence in problem-solving and computational thinking. No prior coding experience is required, and no software installation is needed; students will work in a web editor using their own laptops.

Attendance

Students are encouraged to attend all four sessions, but MoMath and Code4NYC understand that summer schedules can be complicated. If a student will be traveling or otherwise needs to miss a session, opportunities to make up the session online may be available, or make-up modules will be provided.

Scholarship

Those with financial need may request a scholarship by emailing scholarships@momath.org (mailto:scholarships@momath.org).

Folding Fridays, July Series — July 10 through July 31 at 4:30 pm ET (online)
2026-07-10 16:30 - 2026-07-31 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

July 2026 Series

Fridays, July 10 through July 31

4:30 pm to 5:30 pm ET

(online)

Session will not meet on July 24

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

Folding Fridays — July 10 at 4:30 pm ET (online)
2026-07-10 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, July 10

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Family Fridays: "Bubble Brilliance: A shimmering evening of math and wonder" with Steve Langley — Friday, July 10 at 6:30 pm
2026-07-10 18:30 - 20:00 | 635 Sixth Avenue New York, 10011 United States
"Bubble Brilliance: A shimmering evening of math and wonder"

with Steve Langley

Friday, July 10

6:30 pm to 8:00 pm

(in person)

A bubble is fleeting, but in its shimmer, curve, and delicate form, mathematics comes beautifully to life. Join Steve Langley — award-winning Bubbleologist and multiple Guinness World Record holder — for an evening of remarkable bubble artistry, surprising demonstrations, and hands-on discovery as families explore the mathematics of shape, symmetry, surface, and space — and discover the geometry hidden in every film, curve, and floating form.

Family Fridays is designed to bring family members of all ages together to enjoy a diverse array of engaging mathematical activities, promoting interest and enthusiasm among kids and adults alike.

Thanks to the generous support of Two Sigma, this program is free to attendees.

The Math Behind NASA’s Webb Space Telescope featuring Mike Menzel, retired NASA Mission Systems Engineer – Saturday, July 11, from 6:30 pm to 8:00 pm
2026-07-11 18:30 - 20:00 | 635 Sixth Avenue New York, 10011 United States
The Math Behind NASA’s Webb Space Telescope

Featuring Mike Menzel, retired NASA Mission Systems Engineer

Saturday, July 11

6:30 pm to 8:00 pm

(in person)

How does the James Webb Space Telescope use mathematics to reveal places and moments no human eye could ever see? Join Mike Menzel, retired NASA Mission Systems Engineer for Webb, for a behind-the-scenes look at the mathematical ideas that make this extraordinary observatory work. Webb observes light that has traveled across vast distances for billions of years, allowing astronomers to study galaxies, stars, and planets as they appeared in the distant past. Making that possible requires remarkable precision: the geometry of an 18-segment mirror, the alignment of delicate instruments, the measurement of infrared light, and the modeling of distance, motion, temperature, and stability. Discover how mathematics helps Webb gather faint signals from deep space and turn them into astonishing images and new discoveries.

About the presenter

Mike Menzel

Mike Menzel is the NASA Mission Systems Engineer for the James Webb Space Telescope at NASA’s Goddard Space Flight Center. He has been involved with Webb since its earliest planning stages, beginning in 1998 with studies for what was then called the Next Generation Space Telescope. As Mission Systems Engineer, Menzel has overseen key systems engineering efforts including requirements, design, integration, validation, and verification. Earlier in his career, he worked on the Hubble Space Telescope servicing missions and held engineering roles at Lockheed Martin, Orbital Sciences, and RCA Astro. He holds degrees from MIT and Columbia University and is also an avid amateur astronomer.

_____________

All registered children under 16 must be accompanied by a registered adult. MoMath reserves the right to refuse event admission children under 16 without an adult chaperone.

Tween Primes: More Jokes 4 Mathy Folks by Patrick Vennebush — Sunday, July 12, at 5:15 pm (in person)
2026-07-12 17:15 - 18:15 | 635 Sixth Avenue New York, 10011 United States
Tween Primes,

the MoMath book club for tweens and teens

A discussion of

More Jokes 4 Mathy Folks

by Patrick Vennebush

Hosted by Dr. Arthur Benjamin

Sunday, July 12

5:15 pm to 6:15 pm

(in person+drop-off)

Are you a budding mathematician between the ages of 10 and 17 who loves reading? Would you like to make new friends your age who share your passion for mathematics and literature? Join us in person for Tween Primes, the MoMath book club for tweens and teens.

Join host and MoMath’s 2025–2026 Visiting Professor for Public Outreach Dr. Arthur Benjamin for a book club discussion of More Jokes 4 Mathy Folks by author Patrick Vennebush.

Who says math can’t be funny? In More Jokes 4 Mathy Folks as in Math Jokes 4 Mathy Folks, Patrick Vennebush dispels the myth of the humorless mathematician. His quick wit comes through in this incredible compilation of jokes and stories. Intended for all math types, both More Jokes 4 Mathy Folks and Math Jokes 4 Mathy Folks provide a comprehensive collection of math humor, each book containing over 400 jokes.

This is an in-person event at MoMath (635 Sixth Avenue).

Recording of "Starring Math" — July 13, 2026
2026-07-13 18:30 | United States
Starring Math, featuring

A Disappearing Number?

Hosted by Dr. Arthur Benjamin

with Stephen Abbott,

featuring actors Caitlyn Duffy

and Jackson Prince

This is a recording of a live-streamed event that took place on July 13, 2026.

Join host Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, and Stephen Abbott for an engaging discussion of the play A Disappearing Number? Dr. Benjamin is thrilled to welcome actors Caitlyn Duffy and Jackson Prince to help bring the play to life.

Stephen is the Nathan Beman Professor of Mathematics at Middlebury College, where he has taught for three decades. He is the author of the widely used textbook Understanding Analysis (Springer, 2015) and a former co-editor of Math Horizons. His recent book, The Proof Stage, explores how mathematics can be transformed into richly human stories through the lens of theater.

For the fullest experience, participants are encouraged to be familiar with the play in advance of the event.

Caitlyn Duffy and Jackson Prince

_____________

MoMath’s 2025–2026 Visiting Professor Dr. Arthur Benjamin curates a monthly dive into the many ways mathematics inspires — and hides inside — film, theater, music, magic, juggling, and more. Each session features an hour-long conversation with Dr. Benjamin and special guests. Some months you’ll watch the selected movie or performance on your own, then join a lively discussion; other months the performer will appear live, ready to share insights and answer questions. Discover how creative minds weave math into stories, staging, and spectacle, and leave with fresh ways to see the connections between performance and mathematics.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (http://videos.momath.org/).

Starring Math, featuring A Disappearing Number? with Stephen Abbott, featuring actors Caitlyn Duffy and Jackson Prince — Monday, July 13, at 6:30 pm ET (online)
2026-07-13 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Starring Math, featuring

A Disappearing Number?

Hosted by Dr. Arthur Benjamin

with Stephen Abbott,

featuring actors Caitlyn Duffy

and Jackson Prince

Monday, July 13

6:30 pm to 7:30 pm ET

(online)

Join host Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, and Stephen Abbott for an engaging discussion of the play A Disappearing Number? Dr. Benjamin is thrilled to welcome actors Caitlyn Duffy and Jackson Prince to help bring the play to life.

Stephen is the Nathan Beman Professor of Mathematics at Middlebury College, where he has taught for three decades. He is the author of the widely used textbook Understanding Analysis (Springer, 2015) and a former co-editor of Math Horizons. His recent book, The Proof Stage, explores how mathematics can be transformed into richly human stories through the lens of theater.

For the fullest experience, participants are encouraged to be familiar with the play in advance of the event.

Caitlyn Duffy and Jackson Prince

_____________

MoMath’s 2025–2026 Visiting Professor Dr. Arthur Benjamin curates a monthly dive into the many ways mathematics inspires — and hides inside — film, theater, music, magic, juggling, and more. Each session features an hour-long conversation with Dr. Benjamin and special guests. Some months you’ll watch the selected movie or performance on your own, then join a lively discussion; other months the performer will appear live, ready to share insights and answer questions. Discover how creative minds weave math into stories, staging, and spectacle, and leave with fresh ways to see the connections between performance and mathematics.

Fun with Fibonacci and the Glorious Golden Ratio — Tuesday, July 14 at 6:30 pm (in person)
2026-07-14 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Fun with Fibonacci and the Glorious Golden Ratio

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesday, July 14

6:30 pm to 7:45 pm

(in person)

[[DESCRIPTION]]

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Senior Sessions: "Exhibit Explorations: Pythagorean Puzzlers" — Thursday, July 16 at 2:00 pm ET
2026-07-16 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Exhibit Explorations: Pythagorean Puzzlers"

Thursday, July 16

2:00 pm to 2:45 pm ET

The Pythagorean theorem is one of the most important results in all of mathematics. There are more than 120 geometric proofs currently known! Explore geometric proofs in this hands-on workshop based on MoMath’s Time Tables puzzler.

Materials needed: pencil, paper, colored pens (or pencils/markers), ruler, scissors, and graph paper (printout available).

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Folding Fridays — July 17 at 4:30 pm ET (online)
2026-07-17 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, July 17

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

MATRIX x IMAGINARY 2026 — July 18 to July 21
2026-07-18 12:30 - 2026-07-21 17:00
Note: All conference registrants under the age of 16 must be accompanied by a parent or guardian.

Monday Night Magic — Monday, July 20 at 6:30 pm
2026-07-20 18:30 - 21:30 | 44 East 32nd Street New York, NY 10016 United States
Monday Night Magic

Monday, July 20

6:30 pm to 9:30 pm

(The Cutting Room)

Monday Night Magic at The Cutting Room (44 East 32nd Street, between Park and Madison) is New York’s longest-running Off-Broadway magic production, renowned for its rotating ensemble of world-class illusionists, mentalists, and sleight-of-hand specialists. MoMath's Visiting Professor for Public Outreach and renowned mathemagician Dr. Arthur Benjamin will be among the astounding performers.

If you are registered for the 2026 MATRIX x IMAGINARY conference, please email matrix@momath.org (mailto:matrix@momath.org) to receive a special add-on registration link.

Senior Sessions: "Cryptarithmetic" — Tuesday, July 21 at 2:00 pm ET
2026-07-21 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Cryptarithmetic"

Tuesday, July 21

2:00 pm to 2:45 pm ET

Arithmetic is fun, but arithmetic with letters is even better! & Using process of elimination and clever logic, we will explore fundamental properties of base-10 arithmetic in a unique and challenging way. Join us for CRYPT4R1THM3T1C!

Materials needed: pencil and paper

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Fun with Fibonacci and the Glorious Golden Ratio — Tuesday, July 21 at 6:30 pm (in person)
2026-07-21 18:30 - 19:45 | 635 Sixth Avenue New York, 10011 United States
Fun with Fibonacci and the Glorious Golden Ratio

A minicourse hosted by Visiting Professor Dr. Arthur Benjamin

Tuesday, July 21

6:30 pm to 7:45 pm

(in person)

[[DESCRIPTION]]

About the presenter

Meet Dr. Arthur Benjamin, Smallwood Family Professor of Mathematics at Harvey Mudd College in Claremont, California as well as a professional magician. He is also a NYT bestselling author who has presented all over the world; he has given TED talks with more than 50 million views; and he has appeared many times on TV, radio, and in the press, including The Today Show, CNN, National Public Radio, The Colbert Report, The New York Times, the Los Angeles Times, USA Today, Scientific American, Discover, Omni, Esquire, People magazine, and Reader's Digest.

Monthly Mindbenders — Saturday, July 25 at 11:00 am ET
2026-07-25 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, July 25

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Ask a Mathematician — Anything! (online) — Monday, July 27, at 6:30 pm ET
2026-07-27 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Ask a Mathematician — Anything!

Featuring Dr. Arthur Benjamin

Monday, July 27

6:30 pm to 7:30 pm ET

(online)

Ever wanted to ask a mathematician something, maybe about a curious new idea you have, or a concept you'd like to understand better? Don't know whom to ask? Here's your chance!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, for this one-hour, interactive session. Come with your own questions, or just join to listen in. All are welcome, and no question is too basic (although plenty may be too hard!)

Senior Sessions: "Fun on the Square Grid" — Wednesday, July 29 at 2:00 pm ET
2026-07-29 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Fun on the Square Grid"

Wednesday, July 29

2:00 pm to 2:45 pm ET

Join us for fun on the grid! Become a detective of geometry, searching for squares that are hiding in plain sight. Discover surprising properties of random shapes that you create by connecting dots on a square grid.

Materials needed: paper, pencil, graph paper (printout available)

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (http://videos.momath.org).

Math Gym (online) — Wednesday, July 29 at 4:00 pm ET
2026-07-29 16:00 - 17:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, July 29

4:00 pm to 5:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Gym (online) — Wednesday, July 29 at 7:00 pm ET
2026-07-29 19:00 - 20:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, July 29

7:00 pm to 8:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Recording of "Meet a Mathematician: Emma LaPlace" — Thursday, July 30, 2026
2026-07-30 18:30 | United States
Recording of Meet a Mathematician:

Emma LaPlace

This is a recording of a live-streamed event that took place on Thursday, July 30, 2026.

Appropriate for all ages.

Did you ever wonder what a mathematician does all day? Or what made someone decide to become a mathematician? Or even, what a mathematician does for fun? You may be surprised by some of the answers!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes Emma LaPlace to the MoMath stage to share her experiences, her story, and her love of mathematics.

To learn about MoMath's policies regarding video recordings, visit videos.momath.org (https://videos.momath.org).

Meet a Mathematician: Emma LaPlace — Thursday, July 30, from 6:30 pm to 7:30 pm ET (online)
2026-07-30 18:30 - 19:30 | MoMath Online (Zoom link will be emailed after registration) United States
Meet a Mathematician:

Emma LaPlace

Hosted by Dr. Arthur Benjamin

Thursday, July 30

6:30 pm to 7:30 pm ET

(online)

Did you ever wonder what a mathematician does all day? Or what made someone decide to become a mathematician? Or even, what a mathematician does for fun? You may be surprised by some of the answers!

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes Emma LaPlace to the MoMath stage to share her experiences, her story, and her love of mathematics.

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About Meet a Mathematician

Join Dr. Arthur Benjamin, MoMath's 2025–2026 Visiting Professor for Public Outreach, as he welcomes mathematicians to the MoMath stage to share their experiences, their stories, and their love of mathematics.

Host: Dr. Arthur Benjamin

Folding Fridays — July 31 at 4:30 pm ET (online)
2026-07-31 16:30 - 17:30 | MoMath Online (Zoom link will be emailed after registration) United States
Folding Fridays

MoMath's origami series

Friday, July 31

4:30 pm to 5:30 pm ET

(online)

Tap into your creative mathematical side by learning to fold a unique origami model each week! Every session will be different, and each can stand alone. Explore the wonders of paper folding — there’s math in every fold!

This course is appropriate for adults and children ages seven and up; some familiarity with folding origami is recommended in order to keep up with the pace of the class.

To participate, you'll need several sheets of square paper (between 5.5" and 8.5" in side length). Origami paper is preferred, or you can cut your own squares from any paper. You may need a few sheets of printer paper, too.

To register for additional sessions or for an entire series at a discounted rate, please visit foldingfridays.momath.org (https://foldingfridays.momath.org).

Senior Sessions: "Sensational Puzzles" — Thursday, August 6 at 2:00 pm ET
2026-08-06 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Sensational Puzzles"

Thursday, August 6

2:00 pm to 2:45 pm ET

Explore mathematical puzzles that grabbed the headlines! Learn to solve spectacular and controversial puzzles using logic, probability, and basic graph theory; then develop puzzle-solving strategies while diving into these news-making mathematical conundrums.

Materials needed: pencil and paper.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (http://videos.momath.org).

Senior Sessions: "Play like a Mathematician: Bulgarian Solitaire" — Tuesday, August 11 at 2:00 pm ET
2026-08-11 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Play like a Mathematician: Bulgarian Solitaire"

Tuesday, August 11

2:00 pm to 2:45 pm ET

Join us for Bulgarian Solitaire, a simple and intriguing game first introduced by Martin Gardner in 1983. Grab a few tokens or a deck of cards and discover the mathematical elegance behind this fun and engaging puzzle.

Materials needed: paper, pencil, 25 small items for game tokens (coins, beans, paper clips, etc.) or a deck of cards.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Senior Sessions: "Math in Art: Friezes" — Wednesday, August 19 at 2:00 pm ET
2026-08-19 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Math in Art: Friezes"

Wednesday, August 19

2:00 pm to 2:45 pm ET

Continuing in our Math in Art series is an introduction to mathematical symmetry and the seven patterns of friezes. Known for their decorative purposes and often enriched with carvings, these architectural elements have been known and used since antiquity.

Materials needed: pencil, paper, colored pencils or markers (optional), and printouts to be provided.

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Family Fridays: "Dice Auction" with Nat Banting — Friday, August 21 at 6:30 pm
2026-08-21 18:30 - 20:00 | 635 Sixth Avenue New York, 10011 United States
"Dice Auction"

with Nat Banting

Friday, August 21

6:30 pm to 8:00 pm

(in person)

Join award-winning educator Nat Banting for a fast-paced and fun evening where the intoxicating concept of "maybe" takes center stage. Can you make predictions based on a roll of the dice? How sure can you be about what might happen? Will you play it safe — or take a chance on the unlikely for the big win? Probability has never been this much fun!

Family Fridays is designed to bring family members of all ages together to enjoy a diverse array of engaging mathematical activities, promoting interest and enthusiasm among kids and adults alike.

Thanks to the generous support of Two Sigma, this program is free to attendees.

Math Gym (online) — Wednesday, August 26 at 4:00 pm ET
2026-08-26 16:00 - 17:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, August 26

4:00 pm to 5:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Math Gym (online) — Wednesday, August 26 at 7:00 pm ET
2026-08-26 19:00 - 20:00 | MoMath Online (Zoom link will be emailed after registration) United States
Math Gym

A workout for your brain

Wednesday, August 26

7:00 pm to 8:00 pm ET

(online)

Students, spend an hour online independently working on engaging and beautiful math problems. Choose whichever challenges you like and explore them with the guidance and mentorship of an expert mathematician. If you love math and want to experience the incredible joy of mathematical discovery, you won't want to miss this enjoyable monthly program.

Math Gym is free. Students must be strong readers and be able to work independently on challenging math problems. Math Gym is intended for students in 1st grade through 12th grade.

Please have a writing instrument (pen or pencil) and paper handy.

This page is for the Wednesday, March 19 Math Gym event. Click here (https://workout.momath.org) to register for other Math Gym events.

This is an online-only event; all registrants will be participating remotely. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Senior Sessions: "Luck, Magic, or Math?" — Thursday, August 27 at 2:00 pm ET
2026-08-27 14:00 - 14:45 | MoMath Online (Zoom link will be emailed after registration) United States
Senior Sessions:

"Luck, Magic, or Math?"

Thursday, August 27

2:00 pm to 2:45 pm ET

At first glance, the occurrence of an “unlikely” event might seem like luck… or magic. However, when this event occurs over and over, we have to look more closely. With a bit of math, we will see that some events, which might seem unlikely at first, have a higher probability than intuition would suggest. Learn how a clever magician can “read the minds” of an unsuspecting audience using a little knowledge of probability!

Materials needed: pencil, paper, colored pens or markers (3 different colors), deck of playing cards, a single die, and printout of poems (to be provided).

This is a live-streamed event. Occasional video recordings are made available for a fee at videos.momath.org (https://videos.momath.org).

Monthly Mindbenders — Saturday, August 29 at 11:00 am ET
2026-08-29 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, August 29

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Monthly Mindbenders — Saturday, September 26 at 11:00 am ET
2026-09-26 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, September 26

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Monthly Mindbenders — Saturday, October 31 at 11:00 am ET
2026-10-31 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, October 31

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Monthly Mindbenders — Saturday, November 28 at 11:00 am ET
2026-11-28 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, November 28

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

Monthly Mindbenders — Saturday, December 26 at 11:00 am ET
2026-12-26 11:00 - 12:00 | MoMath Online (Zoom link will be emailed after registration) United States
Monthly Mindbenders

Saturday, December 26

11:00 am to 12:00 pm ET

(online)

Challenge your mind with monthly puzzles submitted by Peter Winkler and shared on YouTube by Grant Sanderson (3Blue1Brown). Each month, Peter will also host a short Zoom session to explore the solutions together. Groups are invited to puzzle together and send a photo; one lucky group each month will be highlighted online and receive a special gift from MoMath. Get together with friends to discuss, debate, and solve — then send a fun photo of your puzzle party. MoMath will post photos online and one lucky group each month will be selected to receive a special gift from MoMath.

This is an online-only event; all registrants will be participating remotely.

MOVES 2027: “Playing with Precision” — August 8, 9, and 10
2027-08-08 12:30 - 2027-08-10 17:00
