Math Circle

The eighth annual Summer Math Circle will be held this year at the University of New Hampshire – Manchester from Monday August 17th to Friday August 21st. For more information, and to register, please visit nhmath.org/summer.

Please join us for our end-of-year Math Circle celebration IN PERSON! We will do some interesting computations, using ancient calculators (made before 1960). There will also be games and puzzles and pi. RSVP so we can plan enough snacks for all. Math Circle IN PERSONNashua Public Library2 Court St, Nashua, NH 03060Sunday June 14th 12:00pm-1:30pm

This Sunday, we will look at multiplication modulo 24. Math Circle OnlineSunday May 10th 2026 7pm Look to email for login instructions.

This Sunday, we will continue our investigation of converting multiplication to addition. Math Circle OnlineSunday May 3rd 2026 7pm Look to email for login instructions.

This Sunday, we play a game called Magic Fifteen, and look at the problem of how to diffuse bombs. Math Circle OnlineSunday April 26 2026 7pm Look to email for login instructions.

Please join us for a short Math Circle session where we will play a game called Pop Tac Toe. Math Circle OnlineSunday April 12 2026 7:00pm Look to email for login instructions.

This Sunday, we will turn to a new topic, called Pirate Democracy. Math Circle OnlineSunday March 29 2026 7pm Look to email for login instructions

This Sunday, we continue our investigation we will continue our investigation of More Heads than Tails. If we have time, we will turn to a new topic, called Pirate Democracy. Math Circle OnlineSunday March 22 2026 7pm Look to email for login instructions

Tonight we will have a short Math Circle session, which is appropriate for this time of year. It’s called More Heads than Tails. What happens when you flip a fair coin, and the number of heads exceeds the number of tails? Please bring an actual coin (e.g. a quarter) to the session. Math Circle OnlineSunday …

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Tonight we visit a mathematical magic forest, where there dwell unicorns, elves, and trolls. Math Circle OnlineSunday March 8 2026 7pm Look to email for login instructions.