Years ago, no math education was complete without understanding how to compute a square root. Today, you are probably just reaching for a calculator, or if you are writing a program, you’ll probably ...

Imagine that your focused mind is like your right hand, and your unfocused mind is like your left. You'll get more done by using both. And it lightens cognitive load. Using only focused effort is like ...

The ancient Greeks wanted to believe that the universe could be described in its entirety using only whole numbers and the ratios between them — fractions, or what we now call rational numbers. But ...