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Squares on a Lattice Continued

We continue our investigation which area squares can be created on a lattice. If we have time, we’ll look at triangles as well. Math Circle OnlineSunday February 22 2026 2026 7pm Look to email for login instructions.

HMMT

The Harvard-MIT Math Tournament is tomorrow. Here is some practical info about the event. We will meet 7:15am in Lobby 7 of MIT. Please be sure to depart home early enough to park and walk to MIT by 7:15am. FWIW I am parking here. The competition runs from 8:15am to 4:45pm, with the awards ceremony …

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More Squares on a Lattice

This Sunday, we continue our investigation which area squares can be created on a lattice, and look for some general results. Math Circle OnlineSunday February 15 2026 7pm Look to email for login instructions.

HMMT Practice

HMMT is coming up this Saturday 14 Feb. Let’s have a short HMMT practice: I’d like to work a few problems, so we get an idea of the structure of the competition. We also need to discuss logistics – how we are going to get there. HMMT PracticeThursday 12 Feb 7:00-7:45pm Look to email for …

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Area of a Square

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.

Area Adventure

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 hereĀ (or here). Math Circle OnlineSunday January 18 2026 2026 7pm Look to email for login instructions.

The Number Path Game

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 …

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Catriona’s puzzles

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

Math Circle IN PERSON Nashua Public Library Saturday 1pm

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 …

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Eve and Trip’s Game

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.