In a classroom where students of all ages are singing instead of memorizing, math is starting to make sense. Niah Spriggs, an African American educator in Oklahoma City, is using music to transform ...

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 ...

Mathematicians love a good puzzle. Even something as abstract as multiplying matrices (two-dimensional tables of numbers) can feel like a game when you try to find the most efficient way to do it.