Math Encounters

Note: For the months of January – April of 2022, Math Encounters
will take place on the second Wednesday of the month.

Math Encounters is MoMath’s popular free public presentation series celebrating the spectacular world of mathematics, produced with support from the Simons Foundation.  For further information, call the National Museum of Mathematics at 212-542-0566 or email

Next up

Math Encounters:

“Mathematical Models and Card Shuffles — An Exploration in Group Theory and Probability”

featuring Dan Rockmore

Wednesday, December 1
4:00 pm and 7:00 pm ET (New York)


How can ordinary playing cards lead us into an adventure in group theory?  What are the chances that an ordinary shuffle will result in a random ordering of cards?  Are seven shuffles really enough to thoroughly mix up a deck of cards?  Join Dan Rockmore, Dartmouth Professor of Mathematics, to investigate the math behind the shuffle.  Special introduction by Steven Strogatz, Cornell University Professor of Mathematics and MoMath’s Distinguished Visiting Professor for the Public Dissemination of Mathematics.

This event will be hosted in person at MoMath (11 E 26th Street in Manhattan) and broadcasted online.

Photography notice

By registering for a Math Encounters presentation, you acknowledge that you may be photographed or videotaped by Museum staff and associates and agree to abide by the MoMath General Policies for Events and Photograph Release.

Books by the speakers

We are happy to offer books edited or authored by Math Encounters speakers through our online shop.

Math Encounters available on YouTube and DVD

Math Encounters presentations are generally posted to our YouTube page within one to two months of filming.  Due to copyright issues, some presentations may not be reproduced on the internet.  Presentations posted online are also available for purchase via our online shop.  Click here to purchase yours today!

Presented by the Simons Foundation and the National Museum of Mathematics.

Please note that all children under the age of 16 must be accompanied by an adult.