With three weeks to go, we are at just over a third of our goal for crowdfunding our beautiful new early algebra book! Please contribute to the campaign, and tell your friends and colleagues about this opportunity.
Socks Are Like Pants, Cats Are Like Dogs by Malke Rosenfeld and Gordon Hamilton is filled with a diverse collection of math games, puzzles, and activities exploring the mathematics of choosing, identifying and sorting.
The page has sample activities from the book, a short video about it, and other details.