My latest contribution to the New York Times Learning Network’s 15-Minute Lesson Plan series was inspired by Siobhan Roberts’s wonderful article on the geometry of the soccer ball. The Learning Network article is freely available Read more
A snow day snow array! I thought of punching out that one stubborn entry, but let it be in the spirit of wabi-sabi. It’s like the Great British Baking Show’s missing raspberry. Related Posts
I’ve always found it cool that if you double the smaller acute angle in a 3-4-5 triangle you get the larger acute angle in a 7-24-25 right triangle. You can see this as a consequence Read more
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