I posted a little while ago about the importance of representations in subtraction. Today, I’m sharing a followup video on how to extend that [...]
A teacher named Mark Esch emailed me recently to ask about using one of our classroom games, Horseshoes, in a movie he wanted to make. When he sent it to me, I [...]
We’re in the final stretch of the Kickstarter campaign now! The last ten days will determine just how successful the campaign is. Keep spreading the [...]
I recently committed to donate up to 1000 Tiny Polka Dot games if people could help us find good homes for them. Within four hours of a mass email going out, [...]
In a recent blog post I talked about the importance of starting from where things make sense. This may be one of the best ways to help your kids with math at [...]
Meditation on the Distributive Property In other news, I’ve been thinking about the distributive property. It’s usually summarized algebraically [...]