For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...

Most of us have little trouble working out how many millilitres are in 2.4 litres of water (it’s 2,400). But the same can’t ...

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

Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't be said when we're asked how many minutes are in 2.4 hours (it's 144).

During D.C. Public Schools’ Family Math Night, parents got a firsthand look at how to help their students with math concepts ...

Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

The high-end grocery chain has operated separately from Amazon for years. That is about to change in dramatic ways.

NARRATOR: Hello Snoot. Hello Fin. Hello cousin Plimble. NARRATOR: Well, if there are 3 players, and 6 meebs for each player, it’ll be 3 times 6, which equals 18. There’s 6 meebs per player, and 3 ...

A scuba diver until age 79, Georgette Apol Douwma photographed reefs around the world and then transformed her images into dazzling kaleidoscopic designs. Photographer Georgette Apol Douwma’s ...