Teacher's Guide

MATH: Patterns, Functions, and Algebraic Thinking

Celebrate Pi Day!

It's almost March 14 (3/14) — and we all know what that means! That's right — Pi Day is coming to a classroom near you!

Start your quest for pi at The Story of Pi. Here you can learn about the history of this remarkable (though irrational) number — which stretches back two thousand years B.C.E. Learn how the ancient Egyptians and Babylonians first divined pi, and find out how the search for the exact value for pi continued until early modern times. More advanced students might want to check out Pi Through the Ages, which provides a more detailed history of pi theories.

Trying to find answers to a few basic questions about pi? Don't miss Dr. Math's Pi Page. This site contains many fascinating facts about pi — including a basic definition for those who are still stumped by mathematical mystery.

And if you're ready for a few tunes to help you get into the spirit of the day, visit the Pi Day site! This site includes three perfect songs to hum with your class as you consume a different kind of pie.

Another must-see is The Ridiculously Enhanced Pi Page, which shamelessly promotes its lack of content. There are two versions of the page — #1 and #2 — but both are equally entertaining. Be sure to check out Page #2's Pi Remote and 100 Digit Ticker. Each number on the ticker will lead you to more fascinating information about pi.

Curious about whether your birthday shows up anywhere after the decimal point in pi? You can find out at The Pi Search Page! Sure, this page searches only the first 50 million digits of pi, but what the heck — it's worth a shot! This search engine will also show you where your number shows up after the decimal point, as well as the digits that surround your number.

Still "hungry" for more pi? Check out The Joy of Pi, a site promoting a book by the same name. Here you'll find pi to its first ten thousand digits, a pi cartoon, and links to valuable pi sites around the Web.

Tour Itinerary

The Story of Pi

Pi Through the Ages

Dr. Math's Pi Page

Pi Day

Ridiculously Enhanced Pi Page

The Pi Search Page

The Joy of Pi