As a special Pi Day treat, I share my way to remember pi to 5 decimal places: a Pi Limerick! (Oh, and a video by Vi Hart – who has a beautiful voice!) More

As a special Pi Day treat, I share my way to remember pi to 5 decimal places: a Pi Limerick! (Oh, and a video by Vi Hart – who has a beautiful voice!) More

Here are some variations on the number 4. Some are nice, some are a little freaky. More

Have you seen these variations on the number 3? There’re also a few facts about three! More

Here are some variations on the number 2, as well as a few facts. More

Do you practice fact families with your children? How about variations on different numbers? This is the first in a video series showing variations on numbers. Check it out! More

Calculating the area of a right triangle includes remembering the formula, and doing the arithmetic correctly. Here’s a short video demonstrating it. More

If you think you’re bad at math, maybe you shouldn’t say it. Check out how your social modeling affects your kids. More

Do you braid your hair? Did you know there’s some crazy math in it? More

There’s one calculator that just might save the fate of all others! More

You’ve seen it advertised – but what is *That’s Math!* – really? More