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 ...

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 ...

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

NARRATOR: Hello Snoot, I see you’re shopping. NARRATOR: Let’s see, you’ve got 5 eyeballs and 5 blobs. The eyeballs are 3 credits each and the blobs are 2 credits each. Add those 2 prices together. 3 ...

Students aren’t necessarily missing the math, they’re missing how to make sense of the problem itself. Once we see ...

Are you looking to win big? The DC Lottery offers several games to choose from if you think it’s your lucky day. While your odds of winning a big jackpot in the Powerball or Mega Millions are ...

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

Imagine cruising down the open road, the hum of the engine beneath you, the wind in your hair, and the American landscape ...