There should be no doubt that racist ideas are bankrupt, and racist policy is unjust, that injustice toward any of us hurts all of us.
This video follows up on the previous blog post, on understanding multiplication. Put in the time now and get this foundational understanding laid right.
What does “solve 3 x 8” mean? There are actually two crucial pieces of information to parse for this to mean anything. “x” means “groups of” First [...]
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 [...]