In the Idea of Limits video, we introduce the idea of limits and discuss how it underpins all of the major concepts in calculus. In the Limit Laws video, we introduce the limit laws and discuss how to ...

More than a decade ago, when Adrian Mims was working on his dissertation, he uncovered a confusing pattern in Black students’ math trajectories in the suburban district he was studying. While many ...

The link between good oral health and general health isn't a far-fetched notion. There's many pieces about how your teeth can tell you a lot about the rest of your body. For example, poor oral hygiene ...

Mr. Willingham is a psychologist at the University of Virginia and the author, most recently, of “Outsmart Your Brain: Why Learning Is Hard and How You Can Make It Easy.” Picture your preschooler’s ...