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A one-stop Pi Day shop for teachers and number lovers


  • Home
  • Activities
    • Crafts
    • Contests
    • Eats
    • Songs & Arts
    • Donations
    • Fun with Digits
    • Events
    • Projects
    • Lessons
    • Others
    • Your Ideas
  • Stories
    • Pi on the Brain
    • The Kid Memory Whiz
    • Girl on a Memory Mission
    • Birth of the Pi Rap
    • Pi Goes to Washington
    • The Guy Who Named it Pi
    • Devoted Beyond Death
    • Your Stories
      • Homeless Pi
      • Sarah’s Dollar
  • Music
    • The Rap
    • The Love Song
    • Pi Day Carols
    • Your Music
  • People
    • Kid Digit Memorizers
      • Memorization Rankings by Grade
    • Pi Artists
      • Digits Span the World
      • Clippings and Collages
      • The Fabric of Pi
    • School Pi Chains
      • Pi Chain Gallery
    • Big Names
    • Teacher & Kid Quotes
  • Links
    • Pi Books
    • Best of the Web
  • Blog
  • About


Join an Infinite Club
Ever wanted to own a digit of Pi? Two New York artists have embarked on an ambitious, high-tech, and truly unending project, and they want you to join them.
Pi on the Brain
We all know that memorizing digits of pi is good brain exercise, but can it actually make us better at math? What does neuroscience tell us about all of this? Learn more.
The Pi Rap Lives On
It's been performed by Pi Diddy from coast to coast, and schools everywhere continue to crank it up each March 14th. Have you heard it yet?
Pi Inspires Art
Among the countless artistic tributes to pi, Michael Albert's 777-digit handmade collage really stands out. Learn more.
Pi Day Chain Gangs
All it takes is paper, tape, and a whole lot of determination. One color per digit! Can your school make the rankings?
Fabric of the Digits
Want to be a part of Pi? Craft a digit on a fabric square, and send it to artist Sally Sellers. She stitched thousands together for 3.14.15, and is still at it. Learn more.

Your Coolest Pi Day Videos

Welcome to TeachPi.org!

Welcome to the first and best place on the Web for teachers who want to find or share ideas for Pi Day activities, learning, and entertainment.

We believe that promoting an enthusiasm for learning, through celebration and creativity, will lead to a richer classroom environment and a deeper appreciation of mathematics. read more


Our Favorite Pi Books

This children's book strikes a great balance between story and teaching. The plot is exciting enough not to be upstaged by the clever lessons about pi!
more recommended books

Latest News and Posts

Uh-Oh… Pi Day’s Getting Political?

Posted on 01 Mar 2017
Hi, Friends in Pi! It’s the most wonderful time of the year! Another Pi Day is approaching, and while there’s not much mathematically spec...
read more

3.14.16 is upon us… um, Rounded Pi Day?

Posted on 04 Mar 2016
We all now have our stories of where we were, who we were with, and what kind of pie we were chewing at the Big Moment last year: 3/14/15, 9:26:53.  N...
read more

Popular Places

  • Pi Diddy's Love Song is on iTunes!
  • The Rap: Lose Yourself (In The Digits)
  • Top Digit Memorizer Rankings
  • Who voted against Pi Day in Congress?
  • Pi Day Carols: Lyrics and Handouts

Featured Story

Girl on a Memory Mission

In 1st grade, she wanted to break her whole K-8 school's digit record... by doubling it.
read more


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