Zachary Champagne’s 3rd and 4th graders figure out early on that this math class will be different when their teacher tells them: “I don’t care about the answer.” The goal is to shift his elementary ...

Add Yahoo as a preferred source to see more of our stories on Google. BALTIMORE -- Imagine you’re a character in a math problem. You have three platters, but two cakes. All three platters need to have ...