This Sunday, we continue our investigation of the areas of polygons on a lattice, and focus on the special case of squares on a lattice. Math Circle OnlineSunday January 25 2026 2026 7pm Look to email for login instructions.

Please join us for an Adventure where we look at the Areas of various shapes on a Lattice Landscape. To participate, you will need a few pieces of graph paper. If you don’t have any, you can print some here (or here). Math Circle OnlineSunday January 18 2026 2026 7pm Look to email for login instructions.

This weekend we will look at a couple more of Catriona’s puzzles. Then we turn to a new topic: We are going to play the Number Path Game, and investigate its properties. Please print out this game board beforehand, large enough so that it fills a whole piece of paper, and bring a penny or …

The Number Path Game Read More »

Happy 2026! The Math Circle resumes this Sunday to look at some challenging geometry puzzles created by Catriona. Math Circle Online (tomorrow!)Sunday January 4 7pm Look to email for login instructions

Please join the Math Circle IN PERSON this Saturday for our end-of-semester math celebration! The topic will be Snow Math – the math behind snowflakes. There will be games and snacks on offer, and fun will ensue! Math Circle IN PERSONNashua Public Library2 Court St, Nashua, NH 03060Saturday December 13th 1:00pm-3:00pm EMERGENCY UPDATE: Nashua Public …

Math Circle IN PERSON Nashua Public Library Saturday 1pm Read More »

We will look at a simple game with asymmetrical rules. Eve and Trip take turns rolling an ordinary six sided die. Who will win? Math Circle OnlineSunday December 7th 7pm Look to email for login instructions.

This week we will play a solitaire game called Sonnet that was invented in 2023. Math Circle OnlineSunday November 30 7pm Look to email for login instructions.

We continue our investigation of the Match or No Match problem. An urn contains balls of various colors. Balls are taken from the urn – either they match, or they don’t. What if there are more than two colors? What if we take more than two balls? Math Circle OnlineSunday November 16 7pm Look to …

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This Sunday, we’ll look at a new problem: Match or No Match. An urn contains balls of various colors. Two balls are taken from the urn – either they match, or they don’t. Math Circle OnlineSunday November 9 7pm Look to email for login instructions.

This Sunday we’ll investigate a problem called Zoom Room Foom. Four eager young math students (Arthur, Bamarth, Cedwin, and Dreekar) are in a Math Circle Zoom session. The mentor creates two Zoom Breakout Rooms. Each student must go to one room. Each room must have at least one student. What happens next? Math Circle OnlineSunday …

Zoom Room Foom Read More »