What is Pi Day and How Can You Celebrate Today? - Kumon

What is Pi Day and How Can You Celebrate Today?

Each year on March 14th, or 3/14, math lovers around the world celebrate Pi Day. But what is pi? Pi is the symbol used in mathematics to represent a constant—the ratio of the circumference of a circle to its diameter—which is approximately 3.14159.

While Pi has an infinite number of digits, the current record is 50 trillion digits beyond its decimal point. This was calculated by Timothy Mullican in January of 2020. Keep in mind though that only a handful of the digits are needed for typical calculations, so you won’t need to memorize all 50 trillion! Pi’s infinite nature makes it one of the most popular mathematical concepts.

Check out our infographic to learn more about Pi Day.

Pi Day Facts

Want to incorporate fun ways to celebrate today? Here are three Pi Day activities you can try with your kids:

1. Make Pi Bracelets

One way to help your kids memorize pi digits is to make pi bracelets! This can be done by using different colored beads representing the different numbers in Pi. For example, you can see from the image (on the right) that 1= blue, 2= yellow, 3=green, and so on. Have your kids keep track of how many beads are used for the bracelet to fit on their wrist. This will determine how many digits of pi they used to create it to practice their math skills! If your child would like to continue improving their math skills, be sure to check out the Kumon Math Program.

2. Play Pi Word Connect

Pi Word Connect is a great opportunity to help your child practice their reading and writing skills. Pi Word Connect starts by using the last letter of a word to start a new one. For example, your child can begin the game by saying and writing “pi.” Then your child could continue with “ice,” followed by “eat” and “train.” To help expand your child’s vocabulary and reading abilities beyond Pi Word Connect, check out the Kumon Reading Program.

Consider challenging older children to try combining this game with Word Pi. You can use the same method above, but this time the word must have the same number of letters that correspond with pi. For example, a sequence could be “ink,” “k,” “kind,” “d,” “diary” to correspond with pi’s opening sequence of 3.1415. Not only will they be reading and writing these words but considering ones that follow along with the digits in pi.

3. Eat Pi Day Pie

Whether you love pizza pie, apple pie, or any other flavor of pie, grab a slice as a fun way to celebrate Pi Day today. If you want to take it up a notch, search for a pie recipe to make together that the whole family will enjoy. Who knows, you might even wind up turning this activity into an annual Pi Day tradition!

Whichever way you choose to celebrate today on 3.14, we hope you have a Happy Pi Day!