Recording of NYC Math Festival 2020 – Online!

This is a recording of a live-streamed event that took place on Saturday, July 18, 2020.

Appropriate for all ages.

Please note that MoMath’s video recordings are meant to be viewed by only you — kindly do not share this video, distribute to others, or post to social media.

This page provides a full video recording of the entire festival (almost six hours) as well as individual recordings of each festival segment (about 15 minutes each) in order of appearance. 

Visit for a list of materials to have handy during each segment.

To learn about MoMath’s policies regarding video recordings, visit

Full Video Recording

Segment Videos

International Math Salute with James Tanton


Logic Puzzle with John Urschel

Folding Fun!
with Wendy Zeichner



Moving in Circles
with Karl Schaffer


One Step Back, One Step Forward with Ralph Pantozzi

Rubik’s Cube With Feet
with Daniel Rose-Levine

The Doomsday Rule
with Peter Winkler

Math Raps and the Math Behind Them!
with Mike Andrejkovics



Fun with Mathematical Definitions with Christopher Danielson

Numbers Meet Shapes in 3D Geometry
with Bruce Bayly



with Art Benjamin



How to Fold Things into Thirds, Thirty-Thirds, and Three-Hundred-and-Thirty-Three-“irds”
with James Tanton

Brainteaser Kahoot with Steve Sherman


Mime-matics with Tim Chartier


Conway’s Rational Tangles
with Alex Kontorovich



A Four-Card Mathematical Magic Trick with Manjul Bhargava


Activities from the Julia Robinson Mathematics Festival with Mark Saul

Math Meets Art: Rubik’s Cube Mosaics
with Lauren Rose

Can Math Help You Juggle?
with John Chase

Math in Motion: Build Your Own Paper Spinner
with Yana Mohanty



Finding and Creating Symmetry with David Reimann

Engineering with Paper
with Godwyn Morris



Math, Music, and the Moral Imagination with Marcus G. Miller