1) March 14th is Pi Day, which celebrates the mathematical constant pi. 2) The document provides ideas for celebrating Pi Day such as having desserts like pie or eating pie a la mode, doing projects around pi, and telling pi jokes. 3) It encourages celebrating Pi Day on March 14th or the following Monday and provides several links to pi activities and lessons.

1. Don’t forget to mark
And once you do, you’ll notice
Pi Day
that is a day, 14th is a Sunday.
Pi Day March
your calendars for
To celebrate this joyous number.
Two options:
March 14th
You use it to find circumference.
Have irrational number.
It’s an a totally dessert weekend:
Pi and Sundae or: your
(have
students do a weekend project)
3.14
O let us celebrate Pi Day
Leftover Pi:other.
In a way like no Tastes even better
the day after (celebrate the
Let us celebrate this day
event on Monday) number!
And enjoy this wonderful
Paul Johns 2000

2. There are some fun comics about Pi…

3. … and even some jokes…
Q: What do you get if you divide the circumference of a
bowl of ice cream by its diameter?
A: Pi a'la mode.

4. Q:What do you get when you take the sun and divide its
circumference by its diameter?
A: Pi in the sky.

5. In the Greek alphabet, pi is the sixteenth
letter (and 16 is the square of 4). In the English
alphabet, p is also the sixteenth letter, and i is
the ninth letter (the square of 3). Add them up
(16+9), and you get 25 (the square of five).
Multiply them (16x9), and you get 144 (the
square of 12). Divide 9 by 16, and you get .5625
(the square of .75). It's no wonder that they
say, "Pi are squared!"
Remember…
A= r 2
… and some interesting facts…

6. … and some very hap-pi people…
The most accurate version of pi A team of nine
researchers led by Professor Yasumasa Kanada at the
Information Technology Center at Tokyo University
have calculated pi to 1,240,000,000,000 (1.24 trillion)
places. This surpasses the old record by
206,158,000,000 digits!
Memorizing pi On February
18, 1995, Hiroyuki Goto of
Tokyo, Japan recited pi to
42,195 places at the NHK
Broadcasting Center, Tokyo.

7. … Okay, it’s not written in stone that you have to
celebrate Pi Day…
or, maybe it is???

8. So, consider doing some Pi-Day activities or projects
centered a-round Wednesday, March 14th.
Articles:
Let's Take Another Look at Pi Day – Explores the many uses
of Pi Day.
(Mathematics Teaching in the Middle School, March 2002)
Playing around with "Mono-pi-ly"
(Mathematics Teaching in the Middle School, February 2006)
The game of "mono-pi-ly" for two to five players was created
as a part of a Pi Day activity for use with a mixed-level
geometry class. Students review and practice circle
vocabulary, and area and circumference calculations by
playing the game. Playing time is approximately forty to fifty
minutes.

9. So, consider doing some Pi-Day activities or projects
centered a-round Wednesday, March 14th.
Pi Day. Accept the challenge. The Pi Day Challenge is a
series of puzzles that are logic based. A team of logicians
adapted or created these puzzles – some require
research, some require mathematics, some require pure
savvy.
Joy of Pi contains a wide range of links to pi pages on the
Web including those on memorizing pi, posters to print, pi
mysteries, fun with pi, wacky pi stuff, and a pi fan club.
Teach Pi bills itself as "a one-stop Pi Day shop for
teachers and number lovers." Includes stories, more than
50 pi-related activities, and music.

10. So, consider doing some Pi-Day activities or projects
centered a-round Wednesday, March 14th.
.
Pi Day includes a section of teachers reporting on their
most successful Pi Day activities, as well as a source to
send Pi Day cards.
Explore the history and meaning of pi
http://www.mathgoodies.com/WebQuests/pi_day/
A History of Pi
Links to activities to use for a Pi Day celebration The
Math Forum
Where is your birthday in Pi?

11. So, consider doing some Pi-Day activities or projects
centered a-round Wednesday, March 14th.
Just for Fun
The New York Times science writer John Tierney wrote a
March 2008 Pi Day article which includes a link to an applet
that calculates pi by using Buffon's Needle, and introduces
"pi-ku" using a 3-1-4 syllable pattern rather than the
traditional 5-7-5 syllable pattern of haiku.
It's Pi Day!
Learn math's mysteries.
Three point one for the beginning.
Celebrate!
It's irrational!