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pi Day = 3.14 [Celebrate!]  


Pi is the symbol for the ratio of the circumference of a circle to its diameter. Whatever the size of a circle, if you divide its circumference by its diameter you will always get 3.14159..., better known as pi. Pi is an irrational number, continuing infinitely without repeating. It is usually estimated to the hundredths place (3.14), but with the use of computers, pi has been calculated to over 1 trillion digits past the decimal. Although the ratio has been around for about 4,000 years, the symbol just turned 200 years old in 2006. The symbol for pi was first used in 1706 by a Welsh man, William Jones. The symbol was made popular after Swiss mathematician Leonhard Euler adopted its use in 1737. Every year math enthusiasts everywhere celebrate pi, a celebrity among mathematical constants, on 3/14, also known as Pi Day. Extreme enthusiasts have a special celebration at 1:59 (aka, Pi Minute). PI from wikipedia (with references) 
[PI DAY 2016]: Monday, March 14, 2016 pi Day tshirt finalists: ?? 

[Pi Day 2005] 
[Pi Day 2006] 
[Pi Day 2007] 
[Pi Day 2008] 
[Pi Day 2009] 
[Pi Day 2010] 
[Pi Day 2011] 
[Pi Day 2012] 
[Pi Day 2013] 
[Pi Day 2014] 
[Pi Day 2015] 
[Pi Day 2016] 
[pi DAY: GRADE 5] 
[pi DAY: GRADE 6] 
[LINK]  [piDAY.org] 
[LINK]  [pi DAY] pi Day Song [video clip] 
[LINK]  [pi DAY] pi Day Song [MP3] 
[LINK]  [pi DAY] pi Day Song [Lyrics] 
[LINK]  [pi DAY] NCTM pi Line... 
[LINK]  [pi DAY] NCTM Apple pi Unit... 
[PPT]  [pi DAY] Are You Smarter Than A 5th Grader? [#1] 
[PPT]  [pi DAY] Are You Smarter Than A 5th Grader? [#2] 
[PPT]  [pi DAY] Are You Smarter Than A 5th Grader? [#3] 
[PDF]  [pi DAY] Apple pi: Circumference of Circle Chart... 
[PDF]  [pi DAY] Apple pi: Circle Fractions... 
[PDF]  [pi DAY] Apple pi: Area of Circle Chart... 
[PDF]  [pi DAY] Approximation of pi... 
[PDF]  [pi DAY] Square Circles... 
[PDF]  [pi DAY] The Slope & Line of pi... 
[LINK]  [pi DAY] NCTM Circle Maker... 
[LINK]  [pi DAY] NCTM Computing pi... 
[LINK]  [pi DAY] NCTM Spreadsheet/Graphing Applet... 
[LINK] [Check out the pi Day 2012 iphotos!] 
[PDF] [XLS] [HTM] [Check out the pi Day 2012 class data!] [PRINT]... 
[PPT] [PDF] [HTM] [Check out the pi Day 2012 power point!] 
pi Day = 3.14 [2012]


FlyParsons.com  FlyParsons.org 
Other pi DAY Info: 
REMEMBER: .BRING a fitted hat (with a hat size) that fits you... .BRING circular food... .BRING at least one circular item... .BRING cloth tape measure... .BRING your cool, award winning pi Day created tshirt... .ON March 14, we will learn why pi is irrational... .ON March 14, we will learn why pi is important to circumference... .ON March 14, we will learn what pi does to the area of a circle... .ON March 14, we will calculate our hat sizes with our head size... .ON March 14, we will calculate the area of a circle with pi... 

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[LINK]  [pi DAY] Take the pi Day Challenge... 
[LINK]  [pi DAY] The Joy of pi... 
[LINK]  [pi DAY] Teach pi... 
[LINK]  [pi DAY] pi Day Princeton... 
[LINK]  [pi DAY] Buffon's Needle... 
[LINK]  [pi DAY] The pi Day Hot Dog Throw... 
[LINK]  [pi DAY] Math is Fun: pi Day... 
[LINK]  [pi DAY] The 
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