Children who struggle with arithmetic and math are almost always stuck on a unit from a previous grade, not the one they are ...

Everyone knows that arithmetic is true: 2 + 2 = 4. But surprisingly, we don't know why it's true. By stepping outside the box of our usual way of thinking about numbers, my colleagues and I have ...

In certain math and physics topics, I encountered a lack of sufficient exercises for students to thoroughly master the material. This document contains enough exercises that can be used in a variety ...

Consider this sequence of numbers: 5, 7, 9. Can you spot the pattern? Here’s another with the same pattern: 15, 19, 23. One more: 232, 235, 238. “Three equally spaced things,” says Raghu Meka, a ...

Yotsuya Otsuka's "Hanamaru Little".When you start thinking about middle school entrance exams, isn't this a teaching material ...

Barbie caught a lot of flack back in the ’90s for declaring, “Math class is tough!” Today we find ourselves in the disorienting position of defending her. We recently got a note from an anonymous ...

While her grade school classmates were learning the alphabet and how to count to five, Andrea Bertozzi remembers studying negative numbers and modular arithmetic. Math often gets a bad rap as an ...

If I could misquote Francis Keppel: "Education is too important to be left solely to the educationalists." At a stroke, Keir Bloomer would have us decimate the number of potential talented people who ...

Everyone knows that arithmetic is true: 2 + 2 = 4. But surprisingly, we don’t know why it’s true. By stepping outside the box of our usual way of thinking about numbers, my colleagues and I have ...