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Sometimes you hear the perfect word to describe something you were already doing, but didn’t quite realize you were doing. My most favorite recent case of this came from [...]

I remember years ago reading about Sudoku. Already popular in Japan, the reviewer predicted that it would be featured in newspapers as regularly as crossword puzzles. Since then [...]

We’ll thrilled to be offering math circles for elementary and middle school teachers in partnership with the Washington Experimental Math Lab at the UW. With their generous [...]

We recently wrapped up our most ambitious project ever, and as data on it starts to roll in, I thought I’d take a moment to share. Summer Staircase stats: —19 schools —57 [...]

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 earlier this year, [...]

I got a call months ago from someone with what sounded like like a bizarre idea: he claimed he’d invented a special calculator to use as a pedagogical device in the classroom. I [...]

I read pop math books. Quite a few, in fact. Also, sometimes publishers send me advance copies and ask for reviews. I generally read these too. What makes me a bad reviewer is [...]

We’re thrilled to announce that our Kickstarter campaign for Tiny Polka Dot has funded! This means we’ll be bringing this game into the world before the end of the [...]

This Pyramid Puzzle was recently featured in a post in Forbes about our Tiny Polka Dot campaign. Take two suits–that’s 22 cards, with 0 – 10 each occurring twice. The puzzle [...]

As part of the Math for Future Elementary School Teachers class we’re teaching at the UW, we regularly ask our students to reflect on what they’re learning in the class. This [...]

So you want your kid to know math? Of course you do. Math is an important tool, used widely in many disciplines, and helps us make sense of our world. It’s also beautiful, fun, [...]

We’re happy to announce that our newest math game, Tiny Polka Dot, is now on Kickstarter! Tiny Polka Dot is a math game deck for 3- to 8-year-old children and their families. [...]