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Zeno (zenomath.org) is an organization we’ve admired and collaborated with for a long time. They’re based in Seattle, like us. We’ve been to their math [...]

[Want to get right to it? This Dropbox folder has all the activities and PDFs linked below.] Teachers, administrators, and students all spend the bulk of their [...]

I got a fun note from a friend yesterday, who has been playing with 21st Century Pattern Blocks with his 3.5 year old daughter. He had an idea for 21st Century [...]

I recently received this lovely email entitled Prime Climb Success Story. The thinking here is super interesting, in my opinion, and wonderfully idiosyncratic. [...]

There’s a huge, untapped possibility to improve math teaching and learning that is more playful and more rigorous than how most of us learned the subject back in the day.

Here’s how I know, and how to make it happen.