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 ...

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 ...

Elementary school students who learn to calculate using a mental abacus tend to perform better on math tests than their peers ...

What's the best way for children to learn arithmetic—memorizing number values and multiplication tables, or studying math at a deeper, conceptual level? Educators have long debated the merits of these ...

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 ...