Math Circle

Lines to Infinity

Let’s take look at straight lines from a new perspective. We’ll see that the basic building blocks of geometry – points and lines – are really not all that different. Then we’ll take a brief visit to infinity (and beyond). Join us for an online session of the Math Circle. When: Saturday March 14, 10:00 …

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Monday is One Day

The Math Circle resumes this weekend for the topic: “Monday is One Day”. My birthday was on a Monday this year – I really hate that… but it will be on a Saturday in 2024 – much nicer! Following the approach of mathematician John Conway,  we will learn how to apply modulo 7 mental arithmetic …

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Arithmetic Without Numbers

Please join us as the Math Circle meets this Saturday to consider Arithmetic Without Numbers. We’ll learn how to add, subtract, multiply, divide, and take square roots, without writing down any numbers or calculations. We’ll just use a piece of wood and a bit of string, along with an all-time classic math book. When: Saturday …

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Babylon and on

The Math Circle kicks off the spring term… Don your Sola Topee as we conduct an archeological/mathematical exploration of ancient Mesopotamia. Join us at the Math Circle: Nashua Public LibrarySaturday January 11th 9:30-11:30AMFree of charge

Snowflakes and Snowfakes

What makes a snowflake look like a snowflake? What’s a snowfake? And most importantly, do you know the difference? Join us at the Math Circle: Hollis Social LibrarySunday December 15 2:00-4:00PMFree of charge

Logical Arithmetic

What math can we do with only two numbers? We are going to investigate and apply modulo two arithmetic. If you’re unfamiliar with this, it might sense to study the addition and multiplication tables for mod 2 beforehand, and commit them to memory: Math CircleNashua Public LibrarySaturday November 23 9:30-11:30AMFree of Charge

New Old Ways to Multiply

There’s more than one way to multiply! We’ll look at three methods different from the one you learned in school, invented in ancient times (2000BC, 1600BC, 1960AD). Then we will discuss a new method invented in March 2019 by a pair of mathematicians from France and Australia. Math CircleNashua Public LibrarySaturday November 2 9:30-11:30AMFree of …

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Multiplication is like Addition

This week, the Math Circle is going to do an in depth study of addition and multiplication tables, mostly single digit numbers, in a way you probably haven’t seen before. No calculators required, so be prepared to do some mental arithmetic! Math CircleNashua Public LibrarySaturday October 12 9:30-11:30AMFree of Charge

Dice Polynomials

This week, we will investigate Dice Polynomials. We can represent ordinary dice by polynomials. Those polynomials may tell us something about dice that we might not already know. We’ll finish by using our dice polynomials to make some dice you have never seen before. Math CircleNashua Public LibrarySaturday October 5 9:30-11:30AMFree of Charge