Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

A set of guidelines adopted by 45 states this year may turn children into "little mathematicians" who don't know how to do actual math. A few weeks ago, I wrote an article for TheAtlantic.com ...

In math, students develop an understanding of fractions as numbers. They learn the concepts behind multiplication and division and apply problem-solving skills and strategies for multiplying and ...

The Common Core State Standards have vaulted into the national consciousness lately thanks to some high-profile dissenters, like Louis C.K. ("Kids teachers parents are vocally suffering.") and Stephen ...