Dan Finkel runs Math for Love with his wife, Katherine Cook. They have developed two games: Tiny Polka Dot: A math-enriched card deck for 3- to 8-year-olds. “It’s really flexible,” Finkel said. You ...
Note to parents: You can use a cardboard box or old desk as the shop, and empty packages and cartons from around the house for the items for sale. Get your kids ...