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 ...

With the return to school comes a return to students sitting at their desks for hours every day—and teachers’ subsequent challenge of managing those fidgeting students. There has been considerable ...