Pi is the name for the number recognized as 3.14 and is represented with this Greek symbol: π. The really cool thing about pi is that it's a number that never ends. It goes on forever. To help your kids, and perhaps yourself, understand pi, please check out the videos below.

Pi for Kids (opens in a new tab)

PBS Learning Media / Pi Day (opens in a new tab)

Math Antics - Circles, What is Pi? (opens in a new tab)