A matter of justice
There should be no doubt that racist ideas are bankrupt, and racist policy is unjust, that injustice toward any of us hurts all of us.
Some fantastic free math resources just became available
Note: Third in a series of coronavirus support emails. Sign up to receive our emails here. We’re all homeschooling now, it seems! Fortunately, there are [...]
The logician and puzzle-maker Raymond Smullyan died yesterday at the age of 97. After reports circulating on twitter, the news was confirmed, and articles in [...]
An Interview with Emily Grosvenor, author of Tessalation!
Tessalation! is a new children’s book about a little girl who discovers tessellations in the outdoor world. I backed the project when it was on Kickstarter [...]
Quick Physical Games for the Math Classroom
We hold these truths to be self-evident, that kids need to move around, and creating opportunities to move during math class can pay off in spades. Therefore, [...]
Three Square Problem and Variations
I just saw an absolutely charming problem on Numberphile that I was shocked never to have seen before. They call it the Three Square Problem (featuring [...]