## MoMath** Online Event Recordings**

**Become a member**** today for FREE access to all online event recordings.**

*Math Encounters* videos are available for FREE at youtube.momath.org.

All MoMath online events are intended as live-stream events. However, MoMath makes some event recordings available for purchase. Please allow approximately four to six weeks for videos to be posted.

**Available Videos**

The following events are currently available as video recordings. Click on each title to learn more about — and purchase — recordings.

**August 2, 2022:***Polyhedra Party*with Chaim Goodman-Strauss**for all ages****August 1, 2022:***Modular Mondays*with Kathleen Sheridan**for ages 7 and up****July 26, 2022:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****July 25, 2022:**with Kathleen Sheridan*Modular Mondays***for ages 7 and up****July 23, 2022:***Krazy Kahoot***for all ages****July 21, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****July 20, 2022:**with Steven Strogatz*Volumes***for ages 18 and up****July 19, 2022:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****July 18, 2022:**with Kathleen Sheridan*Modular Mondays***for ages 7 and up****July 15, 2022:***Family Fridays*: “Domino Art: Design, Build, and Topple!”**with Lily Hevesh****for all ages****July 14, 2022:***QED: Pitfalls for Parents***for parents****July 12, 2022:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****July 11, 2022:***Modular Mondays*with Kathleen Sheridan**for ages 7 and up****July 6, 2022:***Family Math Show*with Steve Sherman**for all ages****July 6, 2022:***Fun and Games with Steve*with Steve Sherman**for all ages****July 5, 2022****:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****July 5, 2022****:**with Steve Sherman*Loving Math***for grades K to 3****June 30, 202****2:**with Steven Strogatz and Angela Tabiri*Meet a Mathematician***for all ages****June 29, 2022:***Starring Math*with Steven Strogatz**for ages 13 and up****June 28, 2022****:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****June 24, 2022:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****June 21,****2022:**with Steve Sherman*Loving Math***for grades K to 3****June 20, 2022:***Let’s Get Pickled!*with Gord!**for all ages****June 17, 2022:***Folding Fridays***for ages 7 and up****June 16, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****June 15, 2022:**with Steven Strogatz*Volumes***for ages 18 and up****June 14, 2022:***QED: Pitfalls for Parents***for parents****June 14, 202****2:**with Steve Sherman*Loving Math***for grades K to 3****June 14, 20****22:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****June 11, 2022****:**with Steve Sherman*Krazy Kahoot***for all ages****June 10, 2022:**with Peter Hubbard*Family Fridays*: “Tetragami Tower: An evening of creative design”**for all ages****June 10, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 7, 2022****:**with Chaim Goodman-Strauss*Polyhedra Party***for all ages****June 7, 2022:**with Steve Sherman*Loving Math***for grades K to 3****June 3,****2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 31, 2022:**with Steve Sherman*Loving Math***for grades K to 3****May 24, 2022:**with Steve Sherman*Loving Math***for grades K to 3****May 23, 202****2:**with Steven Strogatz, George Csicsery, Erica Klarreich, and Amie Wilkinson*Starring Math*:*Secrets of the Surface***for ages 13 and up****May 20, 2****022:**with Chaim Goodman-Strauss*Family Fridays*: “Tooti Tooti”**for all ages****May 20, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 19, 2022:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****May 19, 20****22:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****May 18, 2022:**with Steven Strogatz*Volumes***for all ages****May 14, 2022:**with Steve Sherman*Krazy Kahoot***for all ages****May 13, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 10, 202****2:***Loving Math***for grades K to 3****May 6, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 3, 2022:**with Steve Sherman*Loving Math***for grades K to 3****May 2, 2022:***Desert Island Math*:*Polyhedra*with Paul Zeitz**for ages 10 and up****April 29, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 28, 2022:**with Mariel Vazquez*Meet a Mathematician***for all ages****April 26, 2022:**with Steve Sherman*Loving Math***for grades K to 3****April 25, 2022:**with Paul Zeitz*Desert Island Math: Geometric Constructions***for ages 10 and up****April 23, 2022:**with Steve Sherman*Krazy Kahoot***for all ages****April 22, 2****022:**with Steven Strogatz*Family Fridays*: “A Single Straight Cut”**for all ages****April 22, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 21, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****April 20, 2022:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****April 19, 2022:**with Steve Sherman*Loving Math***for grades K to 3****April 19, 2022:**with Steven Strogatz, Stan Chervin, and Lee Mendelowit*Starring Math*:*Moneyball***for ages 13 and up****April 18, 2022:**with Paul Zeitz*Desert Island Math*:*Shortest Distance***for ages 11 and up****April 15, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 14, 2022:***Volumes*with Steven Strogatz**for ages 18 and up****April 12, 2022:***Loving Math***for grades K to 3****April 11, 2022:**with Paul Zeitz*Desert Island Math: Squares and Cubes***for ages 10 and up****April 8, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 5, 2022:***Loving Math***for grades K to 3****April 1, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 31, 2022:**with Francis Su*Meet a Mathematician***for all ages****March 30, 2022:**with Paul Zeitz*Exhibit Tangents*: “Synchronized Spin and Tessellation Station”**for ages 12 and up****March 29, 2022:**with Steve Sherman*Loving Math***for grades K to 3****March 25, 2022:***Folding Fridays***for ages 7 and up****March 23, 2022:**with Paul Zeitz*Exhibit Tangents*: “Motionscape”**for ages 12 and up****March 22, 2022****:**with Steve Sherman*Loving Math***for grades K to 3****March 18, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 17, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****March 16, 2022:**with Paul Zeitz*Exhibit Tangents*: “Tracks of Galileo and Square-Wheeled Tricycle”**for all ages****March 15, 2022:**with Steven Strogatz and Ananyo Bhattacharya*Volumes***for ages 18 and up****March 15, 2022:**with Steve Sherman*Loving Math***for grades K to 3****March 14, 2022:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****March 12, 2022:**with Steve Sherman*Krazy Kahoot***for all ages****March 11, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 11, 2022:**with Alisa Melekhina*Family Fridays*: “Chess Challenge”**for all ages****March 8, 2022:**with Steve Sherman*Loving Math***for grades K to 3****March 7, 2022:**with Paul Zeitz*Buzzword Math*: “Quantum Computing”**for all ages****March 4, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 1, 2022:**with Steve Sherman*Loving Math***for grades K to 3****February 28, 2022:**with Paul Zeitz*Buzzword Math*: “P vs NP”**for all ages****February 25, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 24, 2022:***Space Race Mathematics*: “Apollo 12: Lucky for Some?” for all ages**February 21, 2022:**with Paul Zeitz*Buzzword Math*: “The Riemann Hypothesis”**for all ages****February 19, 2022:**with Steve Sherman*Krazy Kahoot***for all ages****February 18, 2022:***Family Fridays*: “Mondrian Manipulation: a math-art challenge game”**for all ages****February 18, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 17, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****February 16, 2022:**with Steven Strogatz*Volumes***for ages 18 and up****February 15, 2022:**with Steve Sherman*Loving Math***for grades K to 3****February 11, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 10, 2022:**with Mel Currie*Meet a Mathematician***for all ages****February 8, 2022:**with Steve Sherman*Loving Math***for grades K to 3****February 7, 2022:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****February 4, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 1, 2022:**with Steve Sherman*Loving Math***for grades K to 3****January 28, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 27, 2022:**with Benson Farb*Meet a Mathematician***for all ages****January 27, 2022:**with Dr. Sharon Nachman*COVID Science*: “Clinical trials from A to Z”**for ages 14 and up****January 26, 2022:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****January 25, 2022:**with Steve Sherman*Loving Math***for grades K to 3****January 22, 2022:**with Steve Sherman*Krazy Kahoot***for all ages****January 21, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 21, 2022:**with Godwyn Morris*Family Fridays*: “Balancing Act: The Math, Art, and Science of Balance”**for all ages****January 20, 2022:***Space Race Mathematics*: “Rocket to the Moon” for all ages**January 20, 2022:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****January 19, 2022:**with Karen Olsson*Volumes***for ages 18 and up****January 18, 2022:**with Steve Sherman*Loving Math***for grades K to 3****January 17, 2022:**with Dr. Sharon Nachman*COVID Science*: “What does herd immunity really mean?”**for ages 14 and up****January 14, 2022:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 11, 2022:**with Steve Sherman*Loving Math***for grades K to 3****January 11, 2022 – March 8, 2022:**with Steven Strogatz*Math Gems*an eight-week minicourse**for ages 14 and up****January 10, 2022:**with Dr. Sharon Nachman*COVID Science*: “COVID myths… what is the science?”**for ages 14 and up****January 7, 2022:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****December 21, 2021:***Loving Math***for grades 2 to 3****December 21, 2021:***Loving Math***for grades K to 1****December 20, 2021:***Starring Math***for ages 13 and up****December 17, 2021:***Family Fridays***for all ages****December 16, 2021:***Animation**Creation*: “The Art of Digital Movement”**for middle school students and up****December 16, 2021:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****December 14, 2021:***Loving Math***for grades 2 to 3****December 14, 2021:***Loving Math***for grades K to 1****December 13, 2021:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****December 11, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****December 10, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****December 9, 2021:***Animation**Creation*: “The Art of Digital Light and Color”**for middle school students and up****December 9, 2021:**with Tatiana Toro*Meet a Mathematician***for all ages****December 8, 2021:***Volumes***for ages 18 and up****December 7, 2021:***Playing with Palindromes***for ages 14 and up****December 7, 2021:***Loving Math***for grades 2 to 3****December 7 2021:***Loving Math***for grades K to 1****December 3, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****December 2, 2021:***Animation**Creation*: “The Art of Digital Sculpting”**for middle school students and up****November 30, 2021:***Loving Math***for grades 2 to 3****November 30, 2021:***Loving Math***for grades K to 1****November 29, 2021:***Starring Math***for ages 13 and up****November 23, 2021:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****November 23, 2021:***Loving Math***for grades 2 to 3****November 23, 2021:***Loving Math***for grades K to 1****November 22, 2021:**with Emily Riehl*Meet a Mathematician***for all ages****November 22, 2021:**with Bernat Espigulé*History of Mathematics*: “Making Machines Fly and Other Stories from Antiquity”**for ages 14 and up****November 20, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****November 19, 2021:***Family Fridays***for all ages****November 19, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****November 18, 2021:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****November 17, 2021:***Poetry + Math = A Meaningful Path***for ages 14 and up****November 16, 2021:***Loving Math***for grades 2 to 3****November 16, 2021:***Loving Math***for grades K to 1****November 12, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****November 11, 2021:***Volumes***for ages 18 and up****November 9, 2021:***Loving Math***for grades 2 to 3****November 9, 2021:***Loving Math***for grades K to 1****November 5, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****November 2, 2021:***Loving Math***for grades 2 to 3****November 2, 2021:***Loving Math***for grades K to 1****October 29, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****October 28, 2021:**with Bill Dunham*Meet a Mathematician***for all ages****October 27, 2021:**with Stephen Wolfram*History of Mathematics*: debut of new virtual gallery**for middle to high school students and their parents/teachers****October 25, 2021:***Starring Math***for ages 13 and up****October 22, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****October 21, 2021:**with Steven Strogatz*Ask a Mathematician — Anything!***for all ages****October 20, 2021:**with Steven Strogatz*QED: Pitfalls for Parents***for parents****October 19, 2021:***Loving Math***for grades 2 to 3****October 19, 2021:***Loving Math***for grades K to 1****October 15, 2021:***Family Fridays***for all ages****October 12, 2021:***Loving Math***for grades 2 to 3****October 12, 2021:***Loving Math***for grades K to 1****October 9, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****October 8, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****October 5, 2021:***Loving Math***for grades 2 to 3****October 5, 2021:***Loving Math***for grades K to 1****October 1, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****September 30, 2021:**with Grant Sanderson*Meet a Mathematician***for all ages****September 28, 2021:***Loving Math***for grades 2 to 3****September 28, 2021:***Loving Math***for grades K to 1****September 27, 2021:**with Thor Klein, George Dyson, and Steven Strogatz*Adventures of a Mathematician*: Q&A**for ages 14 and up****September 24, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****September 21, 2021:***Loving Math***for grades 2 to 3****September 21, 2021:***Loving Math***for grades K to 1****September 18, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****September 17, 2021:**with Doris Schattschneider*Family Fridays*: “Escher Explorations”**for all ages****September 17, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****September 14, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****September 14, 2021:**with Steve Sherman*Loving Math***for grades K to 1****September 10, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****September 7, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****September 7, 2021:**with Steve Sherman*Loving Math***for grades K to 1****September 3, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****August 31, 2021:**with Alex Kontorovich*Mirror Mirror on the Wall: the story of reflection groups and fractal sphere-packings***for ages 14 and above****August 31, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****August 31, 2021:**with Steve Sherman*Loving Math***for grades K to 1****August 27, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 24, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****August 24, 2021:**with Steve Sherman*Loving Math***for grades K to 1****August 21, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****August 20, 2021:**with Dr. Gregory Michel*Family Fridays*: “Stars, Graphs, and Multiplication”**for all ages****August 20, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 17, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****August 17, 2021:**with Steve Sherman*Loving Math***for grades K to 1****August 13, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 12, 2021:**with Paula Krieg*Folded Folly***for ages 7 and above****August 12, 2021:**with Viktor Blåsjö*Meet a Mathematician***for all ages****August 10, 2021:**with Anton Bakker*Meet the Artist***for ages 10 and above****August 10, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****August 10, 2021:**with Steve Sherman*Loving Math***for grades K to 1****August 6, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 5, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****August 3, 2021:**with Max Ehrman and Alex Kontorovich*Math Meets Major League Baseball***for all ages****August 3, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****August 3, 2021:**with Steve Sherman*Loving Math***for grades K to 1****July 30, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 27, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****July 27, 2021:**with Steve Sherman*Loving Math***for grades K to 1****July 24, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****July 23, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 22, 2021:**with Alex Kontorovich, Deep Singh, and Frank London*The Mathematics of Indian Music***for all ages****July 20, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****July 20, 2021:**with Steve Sherman*Loving Math***for grades K to 1****July 17, 2021:**, nearly six hours of mathematical fun with more than 20 mini-sessions led by MoMath’s most popular speakers,*NYC Math Festival 2021***for all ages****July 16, 2021:**with Alex Kontorovich*Family Fridays*: “Playing with Plato”**for all ages****July 16, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 15, 2021:**with Nicholas Katz*Meet a Mathematician***for all ages****July 13, 2021:**with Anton Bakker*Meet the Artist***for ages 10 and above****July 13, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****July 13, 2021:**with Steve Sherman*Loving Math***for grades K to 1****July 9, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 8, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****July 6, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****July 6, 2021:**with Steve Sherman*Loving Math***for grades K to 1****July 1, 2021:**with Pavla Rosenstein and Alex Kontorovich*History of Mathematics in Mesopotamia***for ages 14 and above****June 29, 2021:**with Joshua Zucker*Pascal’s Dots and Fractal Triangles***for ages 10 and above****June 29, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****June 29, 2021:**with Steve Sherman*Loving Math***for grades K to 1****June 25, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 24, 2021:**with Paul Zeitz*Fractions Forever***for ages 12 and up****June 24, 2021:**with Catriona Agg*Meet a Mathematician***for all ages****June 22, 2021:**with Joshua Zucker*Children Of Dots***for kids old enough to add, color, and stay careful and organized****June 22, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****June 22, 2021:**with Steve Sherman*Loving Math***for grades K to 1****June 18, 2021:**with Dr. Francesca Iezzi, Dr. Ben Goddard, and Mary O’Brien*Family Fridays*: “Triple Challenge: have fun and get your brain juices flowing … with math!”**for all ages****June 18, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 17, 2021:**with Paul Zeitz*Only Isosceles***for ages 14 and up****June 15, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****June 15, 2021:**with Steve Sherman*Loving Math***for grades K to 1****June 12, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****June 11, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 9, 2021: Diversity in Computing: Challenges and Possibilities**with Dr. Marie desJardins**for ages 14 and above****June 8, 2021: Meet the Author**with Jordan Ellenberg**for ages 14 and up****June 8, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****June 8, 2021:**with Steve Sherman*Loving Math***for grades K to 1****June 6 through July 25, 2021:**with Dr. Susan J. Fishbein*Bridge Basics 1***for ages 14 and up****June 4, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 3, 2021:**with Paul Zeitz*Ramsey Theory*: “Absurdly Extravagant Upper Bounds, and the wizards who shrink them”**for ages 14 and up****June 3, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****June 1, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****June 1, 2021:**with Steve Sherman*Loving Math***for grades K to 1****May 28, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 27, 2021:**with Joshua Zucker*Making Infinity Finite***for ages 14 and above****May 26, 2021:**with Anton Bakker, Doris Schattschneider, Jonathan Bailey, and Herman Tulleken*Conway’s Magical Pen***for all ages****May 25, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****May 25, 2021:**with Steve Sherman*Loving Math***for grades K to 1****May 24, 2021:***Statistics in the STEM Classroom: Real-Life Applications and Impacts*(Part II)**for math and physics educators (and other adults)****May 21, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 20, 2021:**with Paul Zeitz*Ramsey Theory*: “Coloring Infinite Combs”**for ages 14 and up****May 20, 2021:**with Jordan Ellenberg*Meet a Mathematician***for all ages****May 18, 2021:**with Joshua Zucker*Shift and Subtract: How to make decimals do your bidding***for ages 14 and above****May 18, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****May 18, 2021:**with Steve Sherman*Loving Math***for grades K to 1****May 15, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****May 14, 2021:**with Patrick Vennebush*Family Fridays:*“Punz and Puzzles”**for all ages****May 14, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 13, 2021:**with Paul Zeitz*Ramsey Theory*: “The Pigeonhole Principle, on Steroids”**for ages 14 and up****May 12, 2021:***Poetic Math***for all ages****May 11, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****May 11, 2021:**with Steve Sherman*Loving Math***for grades K to 1****May 10, 2021:**with Alex Kontorovich*Noteworthy Math: the math of music and the music of math***for ages 14 and up****May 7, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****May 6, 2021:**with Aditya Dutt for students in grades 4 to 7*Introduction to Tinkercad*(3D modeling software)**May 6, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****May 4, 2021:**with Joshua Zucker*Mysterious Subtraction***for ages 10 and up****May 4, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****May 4, 2021:**with Steve Sherman*Loving Math***for grades K to 1****April 30, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 28, 2021:**with Anton Bakker*Spirals***for ages 10 and up****April 27, 2021:**with Alex Kontorovich*QED: Homework Help… for Parents!***for parents****April 23, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 22, 2021:**with Paul Zeitz*The Price of a Game***for all ages****April 16, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 15, 2021:**with Steven Strogatz*Meet a Mathematician***for all ages****April 13, 2021:**with Allison DeHart, Peter DeHart, Calvin Wiggs, and Carlo Séquin*Bending Lines***for all ages****April 12, 2021:**with Alex Kontorovich and Jeff Brock*Noteworthy Math: the math of music and the music of math***for ages 14 and up****April 10, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****April 9, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 8, 2021:**with Paul Zeitz*Mathematical Mindfulness*: “Everything you wanted to know about… Tiling the Plane”**for ages 10 and up****April 6, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****April 6, 2021:**with Steve Sherman*Loving Math***for grades K to 1****April 3, 2021: 2021 MoMath SET Tournament**with Nat Stahl, Liz McMahon, Gary Gordon, Hannah Gordon, and Rebecca Gordon**for ages 6 and up****April 2, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****April 1, 2021:**with Paul Zeitz*Mathematical Mindfulness*: “Everything you wanted to know about… Triangular numbers”**for ages 10 and up****April 1, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****March 31, 2021:**with Colin Adams, Doris Schattschneider, Tom Verhoeff, and Anton Bakker*Polylinear and Knotted Sculptures***for ages 10 and up****March 30, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****March 30, 2021:**with Steve Sherman*Loving Math***for grades K to 1****March 26, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 25, 2021:**with Paul Zeitz*Mathematical Mindfulness*: “Everything you wanted to know about… Powers of two”**for ages 10 and up****March 24, 2021:***Open Set*2021: a night of musical performance**for all ages****March 23, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****March 23, 2021:**with Steve Sherman*Loving Math***for grades K to 1****March 22, 2021:**with Alex Kontorovich and Luisa Pereira*Noteworthy Math: the math of music and the music of math***for ages 14 and up****March 19, 2021:**with Ben Sparks*Family Fridays:*“More Magical Math”**for all ages****March 19, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 18, 2021:**with Paul Zeitz*Mathematical Mindfulness*: “Everything you wanted to know about… A blank sheet of graph paper”**for ages 10 and up****March 16, 2021:**with Jürgen Richter-Gebert*Hidden Messages***for all ages****March 16, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****March 16, 2021:**with Steve Sherman*Loving Math***for grades K to 1****March 14, 2021:**with Steve Sherman*Pi Day*2021: Pi by night**for all ages****March 13, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****March 12, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 11, 2021:**with Camille François*Disinformation and the 2020 Election***for adults****March 10, 2021:**with Robert Leonard*Forensic linguistics: Using inductive inference and linguistic pattern recognition to solve crimes with the FBI***for ages 18 and up****March 9, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****March 9, 2021:**with Steve Sherman*Loving Math***for grades K to 1****March 8, 2021:**with Alex Kontorovich and Ben Markham*Noteworthy Math: the math of music and the music of math***for ages 14 and up****March 5, 2021:**with Peter Cavanagh*Avian Arithmetic: The mathematics of bird flight***for ages 10 and up****March 5, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****March 4, 2021:**with Paul Zeitz*Jump-In Geometry:*“Inversion”**for ages 12 and up****March 4, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****March 2, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****March 2, 2021:**with Steve Sherman*Loving Math***for grades K to 1****March 1, 2021:**with Peter Winkler*Puzzles That Weren’t Used in Mind-Benders for the Quarantined — But Maybe Should Have Been!***for ages 14 and up****February 26, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 25, 2021:**with Paul Zeitz*Jump-In Geometry:*“Rotations and Reflections”**for ages 12 and up****February 24, 2021:**with Anton Bakker, Doris Schattsneider, Tom Verhoeff, Stephen L. Macknik, and Susana Martinez-Conde*Optical Illusion Art: Using math, perspective, and dimension to create mind-bending sculptures***for ages 10 and up****February 22, 2021:**with Alex Kontorovich and Anthony DJ Branker*Noteworthy Math: the math of music and the music of math***for ages 14 and up****February 19, 2021:**with Gord!*Family Fridays*: “Mini Mathematical Universes”**for all ages****February 19, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 18, 2021:**with Paul Zeitz*Jump-In Geometry:*“Dissections”**for ages 12 and up****February 18, 2021:**with Richard Tapia*Meet a Mathematician***for all ages****February 16, 2021:**with Alex Kontorovich*QED: Homework Help… for Parents!***for parents****February 16, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****February 16, 2021:**with Steve Sherman*Loving Math***for grades K to 1****February 13, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****February 12, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 11, 2021:**with Paul Zeitz*Jump-In Geometry:*“Beyond the Compass”**for ages 10 and up****February 9, 2021:**with Philip Dituriv, Andy Davidson, and Andra Turner*Log In! Exploring Logarithms through Experimentation and Play***for students, parents, teachers, and math lovers of all ages****February 9, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****February 9, 2021:**with Steve Sherman*Loving Math***for grades K to 1****February 8, 2021:**with Alex Kontorovich and Stefanie Wolf*Noteworthy Math: the math of music and the music of math***for ages 14 and up****February 5, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****February 4, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****February 2, 2021:**with Alex Kontorovich*Danger: Your kids might learn to code!***for ages 10 and up****February 2, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****February 2, 2021:**with Steve Sherman*Loving Math***for grades K to 1****February 1, 2021:**with Robert Fuhrer, Aaron Kaswell, Noriko Yoshimura, and Ellie Grueskin*Miyamoto and the Machine*(a documentary about KenKen): film screening and panel discussion**for all ages****February 1, 2021:**with Aaron Kaswell*Puzzle Plays: Using Games, Challenges, and Brain-Teasers in the Math Classroom***for math educators (grades 6 to 12)****January 29, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 26, 2021:**with Alex Kontorovich*QED: Homework Help… for Parents!***for parents****January 26, 2021:**with Steve Sherman*Loving Math***for grades 2 to 3****January 26, 2021:**with Steve Sherman*Loving Math***for grades K to 1****January 25, 2021:**with Alex Kontorovich*Noteworthy Math: the math of music and the music of math***for ages 14 and up****January 22, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 21, 2021:**with Lisa Piccirillo*Meet a Mathematician***for all ages****January 20, 2021:**with Yoshi Anpuku*Nikoli Puzzle Challenge Contest***for all ages****January 19, 2021:**with Yoshi Anpuku*Nikoli’s Hand-Crafted Puzzle Workshop***for all ages****January 19, 2021:**with Steve Sherman*Loving Math***for ages 5 to 8****January 15, 2021:**with Alison Kiddle*Family Fridays*: “Hidden Hexagons: Secrets of a Six-Sided Shape”**for all ages****January 15, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 9, 2021:**with Steve Sherman*Krazy Kahoot***for all ages****January 8, 2021:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****January 7, 2021:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****December 22, 2020:**with Alex Kontorovich*QED: Homework Help… for Parents!***for parents****December 18, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****December 17, 2020:**with Sarah Koch*Meet a Mathematician***for all ages****December 12, 2020:**with Steve Sherman*Krazy Kahoot***for all ages****December 11, 2020:**with Ralph Pantozzi*Family Fridays:*“Are We There Yet?”**for all ages****December 11, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****December 10, 2020:**with Joshua Zucker*Mathematical Magic Tricks***for ages 9 and up****December 9, 2020:**with Aleida Perez, Allen Mincer, Matthew DeMarinis, Heidi Reih, James Tanton, Jordan Pekor, John Hirdt, LoriAnn Pawlik, and Patrick Honner*Statistics in the STEM Classroom: Real-Life Applications and Impacts***for math and physics educators (and other adults)****December 8, 2020:**with Steve Sherman*Loving Math***for ages 5 to 8****December 4, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****December 3, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****November 23, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****November 20, 2020:***The Liar, the Glitch, and the Axiom of Choice***for anyone who has seen some algebra and binary arithmetic before****November 20, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****November 19, 2020:**with Benedict Gross*Meet a Mathematician***for all ages****November 16, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****November 13, 2020:**with John Chase*Family Fridays:*“M-Cubed: Math, Mystery, and Magic”**for all ages****November 13, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****November 12, 2020:**with Joshua Zucker*Coins in Twoland, second session***for ages 11 and up****November 11, 2020:**with Joshua Zucker*Coins in Twoland, first session***for ages 11 and up****November 10, 2020:**with Steve Sherman*Loving Math***for ages 5 to 8****November 7, 2020:**with Steve Sherman*Krazy Kahoot***for all ages****November 6, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****November 5, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****November 2, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****October 30, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****October 29, 2020:**with Joshua Zucker*Lost Treasures of the Multiplication Table***for ages 9 and up****October 28, 2020:**with Paul Zeitz*Mathematical Fusion:*“Geometry and Number Theory”**for ages 12 and up****October 27, 2020:**with Alex Kontorovich*QED: Homework Help… for Parents!***for parents****October 26, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****October 23, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****October 21, 2020:**with Paul Zeitz*Mathematical Fusion:*“Number Theory and Statistics”**for ages 12 and up****October 20, 2020:**with Eric Schmidt, Julie Gerberding, and Nate Silver*Real and Rational*, the 2020 MoMath gala**October 19, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****October 16, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****October 16, 2020:**with James Tanton*Global Math Week:*“Going Completely Wild: Base one-and-a-half, and beyond!” at 5:00 pm**for all ages****October 16, 2020:**with James Tanton*Global Math Week:*“Going Completely Wild: Base one-and-a-half, and beyond!” at 11:30 am**for all ages****October 15, 2020:**with Joshua Zucker*Alice’s Adventures in Short Division***for ages 10 and up****October 15, 2020:**with Mario Livio*Meet a Mathematician***for all ages****October 15, 2020:**with James Tanton*Global Math Week:*“Fractions as Decimals … and something Irrational” at 5:00 pm**for all ages****October 15, 2020:**with James Tanton*Global Math Week:*“Fractions as Decimals … and something Irrational” at 11:30 am**for all ages****October 14, 2020:**with Paul Zeitz*Mathematical Fusion:*“Electrical Circuits and Random Walks”**for ages 12 and up****October 14, 2020:**with James Tanton*Global Math Week:*“Mind-Blowing Division” at 5:00 pm**for all ages****October 14, 2020:**with James Tanton*Global Math Week:*“Mind-Blowing Division” at 11:30 am**for all ages****October 13, 2020:**with James Tanton*Global Math Week:*“Dots and Tods … and Subtraction” at 5:00 pm**for all ages****October 13, 2020:**with James Tanton*Global Math Week:*“Dots and Tods … and Subtraction” at 11:30 am**for all ages****October 12, 2020:**with James Tanton*Global Math Week:*“Weird English … and Addition and Multiplication” at 11:30 am**for all ages****October 11, 2020:**with James Tanton*Global Math Week:*“Wild Machines” at 5:00 pm**for all ages****October 10, 2020:**with James Tanton*Global Math Week:*“The Five-Card Mind-Reading Trick” at 5:00 pm**for all ages****October 10, 2020:**with James Tanton*Global Math Week:*“The Five-Card Mind-Reading Trick” at 11:30 am**for all ages****October 9, 2020:**with John Chase*Family Fridays:*“Flying Math: Can Math Help You Juggle?”**for all ages****October 9, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****October 8, 2020:**with Rebecca Roberts, Caitlin Miller, Dexter Senft, and Peter Winkler*Write Angles:*“Math Words Trivia Night”**for ages 14 and up****October 6, 2020:**with Steve Sherman*Loving Math***for ages 5 to 8****October 2, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****October 1, 2020:**with Christopher Danielson*Fun with Mathematical Definitions***for ages 10 and up****October 1, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****September 30, 2020:**with Karl Schaffer*Dancing with Circles***for all ages****September 25, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****September 24, 2020:**with Rebecca Roberts, Caitlin Miller, Dexter Senft, and Peter Winkler*Write Angles:*“Code Breaking: Patterns and Sequences”**for ages 14 and up****September 23, 2020:**with Adrienne E. Adams, Monica Jackson, William A. Massey, James McLurkin, Jelani Nelson, John Urschel, and Ashia Wilson*Bending the Arc***for all ages****September 21, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****September 18, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****September 17, 2020:**with Joshua Zucker*Egyptian Mystery***for ages 11 and up****September 17, 2020:**with Donald Richards*Meet a Mathematician***for all ages****September 16, 2020:**with Andreas Matt*I AM A.I.: Explaining Artificial Intelligence***for ages 14 and up****September 14, 2020:**with Alex Kontorovich*Pythagoras to Present Day***for ages 14 and up****September 13, 2020:**with Steve Sherman*Krazy Kahoot***for all ages****September 11, 2020:**with Roderick Kimball*Family Fridays:*“Puzzle Play”**for all ages****September 11, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****September 10, 2020:**with Rebecca Roberts, Caitlin Miller, Dexter Senft, and Peter Winkler*Write Angles:*“Word Ladders and Water Pouring Puzzles”**for ages 14 and up****September 9, 2020:**with Paul Zeitz*Some Sums***for ages 10 and up****September 8, 2020:**with Steve Sherman*Loving Math***for grades K through 3****September 4, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****September 3, 2020:**with Joshua Zucker*Liar’s Bingo***for ages 11 and up****September 3, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****August 28, 2020 – August 30, 2020:**with Steve Sherman*MoMath Mayhem***for all ages****August 28, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 26, 2020:**with Po-Shen Loh*Math vs. COVID-19***for ages 11 and up****August 22, 2020:**with Anton Bakker*Alternative Perspective*Opening Reception and Meet the Artist**for all ages****August 21, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 20, 2020:**with Steve Sherman*Loving Math***for grades K through 3****August 14, 2020:**with Amy Alznauer*Family Fridays*: “Infinite Dreams: The Story and Childhood Games of the Mathematical Genius Ramanujan”**for all ages****August 14, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 13, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****August 7, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****August 4, 2020:**with Peter Winkler*Hats and Liars*: “Logic Puzzles”**for ages 14 and up****July 31, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 30, 2020:***Stone Age Math***for ages 10 and up****July 28, 2020:**with Peter Winkler*Hats and Liars*: “Hat Puzzles”**for ages 14 and up****July 24, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 18, 2020: NYC Math Festival 2020 – Online!**, nearly six hours of mathematical fun with more than 20 mini-sessions led by MoMath’s most popular speakers,**for all ages****July 17, 2020:**with Scott Kim*Family Fridays*: “Word Patterns: Pinwheels, Tessellations, and Ambigrams”**for all ages****July 17, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 14, 2020: “Beyond Infinity,” the fourth session in the**with Paul Zeitz*Big and Very Big Number Series***for all ages****July 14, 2020:**hosted by Dr. Alex Kontorovich*Meet a Mathematician***for all ages****July 10, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****July 9, 2020: “Path Puzzles”**with Roderick Kimball**for ages 12 and up****July 7, 2020: “To Infinity…,” the third session in the**with Paul Zeitz*Big and Very Number Series***for ages 14 and up****July 2, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****July 2, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 30, 2020: “Unimaginably BIG Numbers,”****the second session in the**with Paul Zeitz*Big and Very Big Number Series***for all ages****June 25, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 22, 2020:**with Marcus G. Miller*Quadrivium*: “Math, Music, and the Moral Imagination”**for all ages****June 19, 2020:**with Godwyn Morris*Family Fridays*: “Engineering with Paper”**for all ages****June 19, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 9, 2020:**hosted by Dr. Alex Kontorovich*Meet a Mathematician***for all ages****June 8, 2020: “Pascal’s Playground”**with Paul Zeitz**for ages 10 and up****June 5, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up****June 4, 2020:**with Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****May 29, 2020:**with Kathleen Sheridan*Folding Fridays***for ages 7 and up**.*Cat Box origami design by Gay Merrill Gross (taught with permission of the creator)***May 28, 2020:**with Paul Zeitz*Games of Little to No Chance***for ages 14 and up****May 20, 2020: “How Mathematics Connects Us”**with Philipp Legner**for students in grades 6 to 12****May 19, 2020: “Get in the Game — with Math!”**with Brian Macdonald and Tim Chartier**for ages 11 and up****May 15, 2020:**with Jay Pasachoff*Family Fridays*: “Sky Spectaculars: Now You See It, Now You Don’t!”**for all ages****May 14, 2020: “Solar Eclipses: Math, Science, and Spectacle”**with Jay Pasachoff**for ages 12 and up**hosted by Dr. Alex Kontorovich**May 12, 2020:***Meet a Mathematician***for all ages**with Dr. James Tanton**May 7, 2020: “The Astounding Mathematics of Lines in Circles”****for all ages**with Dr. Alex Kontorovich**May 7, 2020:***Ask a Mathematician — Anything!***for all ages****May 5, 2020: “From ‘Circle-ometry’ to Trigonometry: Exploring the Story of Trigonometry and Why the Curriculum Does it Backwards”****for math educators (and other adults!)**with OrigamiUSA’s Wendy Zeichner**April 23, 2020:***Folding Fun Online***f****or ages 7 and up**with Dr. Jürgen Richter-Gebert**April 15, 2020: “Home Base: Mathy Things to Do at Home”****for all ages****April 10, 2020:**with Dr. Lauren Rose*Family Fridays*: “Math Meets Art: Making a Rubik’s Cube Mosaic”**for all ages****April 6, 2020: “Math Flash! A New Look at an Old Problem”**with Dr. Po-Shen Loh**for ages 18 and up****April 2, 2020:**with Dr. Alex Kontorovich*Ask a Mathematician — Anything!***for all ages****March 26, 2020:**with Dr. Alex Kontorovich*Ask a Mathematician — Anything!***for all ages**

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