Pi Day

   
Pi Day is celebrated on March 14 ( 3.14) at 1:59.  What is Pi? The ratio of the circumference to the diameter of a circle.  This is an irrational number, meaning with no repeating decimal pattern or no end.  The value of pi is approximately 3.14159.

  Celebrate Pi Day - from National Council of Teachers of Mathematics (NCTM)

  Pi Day

 The Pi Song
  Send a Pi Day e-card
  The Joy of Pi
  How to celebrate Pi Day
  Teach Pi
  Pi Day from Exploratroium
  History of Pi
  Are the Digits of Pi Random
  The Story of Pi
 Pi Day Resources from  Educators
 Plan a Pi Day Party
 50 interesting Facts about Pi
 Celebrate Pi Day
 Making a Pi Necklace
 Activities from teach
 More songs for Pi Day
 Pi Line - Lesson Plan -
 Apple Pi - Lesson Plan
 Plan a Pi Day Party for March 14