Math Teachers: You likely know the professional learning work of high school math teacher, Dan Meyer. In this Ted Talk, he describes his three-act math problem-solving strategy with humor and concrete math examples of why he thinks the U.S. needs different math learning resources and curricula. “I sell a product to a market that doesn’t want it, but is forced by law to buy it.” His goal? Engage teens in mathematical thinking that grabs their interest and builds deep understanding, not simply memorization of procedures. You can follow Dan Meyer on Twitter @ddmeyer.