## 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 two to four 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.

**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 24, 2021:***Folding Fridays*with Kathleen Sheridan**for ages 7 and up****September 21, 2021:***Loving Math***for grades K to 1****September 21, 2021:***Loving Math***for grades 2 to 3****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 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 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 15, 2020:**with Anton Bakker*Alternative Perspective*Opening Reception and Meet the Artist**for all ages****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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