Zero may be nothing, but it's essential to learning math! Discover how to teach zero to kids through these fun and engaging math activities.

About 2,500 years ago, Babylonian traders in Mesopotamia impressed two slanted wedges into clay tablets. The shapes represented a placeholder digit, squeezed between others, to distinguish numbers ...

Zero is a number. But unlike other numbers, zero represents not a thing, but an absence of a thing, or nothing. So understanding zero requires us to recognise the absence of something. From our ...