A key part—though surely not the only part—of early-grades math is ensuring students get the basic arithmetic functions down and, beyond that, making sure they’re able to swiftly and automatically ...

Kids ask, "Why?" all the time. Why does 1+1=2? Why do we have to memorize multiplication tables? Many of us eventually stop asking these questions. But what if someone — a mathematician — encouraged ...

The Common Core's approach to math has proved among the most contentious aspects of the controversial national teaching standards. In short, the new methods for addition and multiplication — namely, ...