Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about numbers. And while that may seem daunting, most kids enjoy sharpening their math ...

The federal government shutdown canceled a second straight jobs report, but private data sources suggest the labor market has ...

When counting squares in a grid, don’t stop at the smallest boxes; the bigger ones are hiding too. The rule is simple: In an n × n grid—where n is the number of squares both horizontally and ...

This viral optical illusion challenges viewers to spot the number 71 hidden among rows of 11s. Only the sharpest eyes can find it in under five seconds, can you?

A new collection of research papers examines how humans conceptualize numbers and the numeral systems we’ve build around them ...

A database, collecting and classifying tile-like patterns in biology, aims to be a resource and research catalyst. The human ...

For over a decade, mathematicians have failed to agree whether a 500-page proof is actually correct. Now, translating the ...

Being able to store files in the cloud and get them from everywhere is great, but it's not a foolproof solution. Investing in on-site storage, whether you opt for an internal or external drive, is the ...