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

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

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 ...

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

"No one should have to spend a fortune on a lawyer or hours trying to figure out what went wrong on their taxes when the IRS ...

The 80/20 rule dictates that your stuff should take up only 80 percent of a given space — a closet, a drawer, a bookshelf — leaving 20 percent empty. Think of it as headroom for your stuff: Leaving ...

Nearly 1,000 UCSD freshmen test into elementary school math despite stellar high school grades—a crisis 30 times worse than ...

REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a ...