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Math Amateur Solves “Einstein” Problem

Siobhan Roberts New York Times
An “einstein” is a shape that tiles an infinite flat surface without repetition. It all began with a hobbyist “messing about and experimenting with shapes.”

Tidbits - August 14, 2014

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Reader Response Common Core Math Standards - They Do Add Up

Kate Abell; Bill McCallum Portside
New York public school teacher Kate Abell responds to earlier Portside post, on Common Core, adding the perspective of a math educator. "The Common Core Math Standards are far and away the best tool for supporting teachers in the teaching of mathematics that I have ever encountered. The standards themselves are written in a way to help teachers deepen their own understanding of mathematics, make connections between math topics.. and pass this on to their students."

Tidbits - May 30, 2013

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