## Celebrate Pi

**Process Part I: Learning About Pi**

- Browse our lesson on Circumference of a Circle.
- Complete the five interactive exercises at the end of this lesson.
- Browse our lesson on Area of a Circle.
- Complete the five interactive exercises at the end of this lesson.
- Try our interactive and printable crossword puzzles on circles.
- Visit Pi Day, the official web site for Pi Day.
- Visit The Exploratorium's Pi Day Celebration Page

**Process Part II: Learning About the Meaning and History of Pi**

- What is the relationship between the symbol and the word Pi?
- The value of Pi comes from what ratio?
- Why is Pi called a mathematical constant?
- Why does Pi continue infinitely?
- Why is Pi an irrational number?
- How many digits of Pi are known?
- Which mathematicians first used the symbol ? Why?

**Process Part III: Learning About Pi Day**

- Why is Pi Day celebrated on March 14?
- For how many years has Pi Day been celebrated?
- March 14 is also whose birthday?
- Who tried to find the first calculation of Pi?

**Process Part IV: Celebrating Pi Day**

Spend a few hours celebrating Pi Day by engaging in online activities. You may choose activities from the suggested sites listed below. Or find your own activities by searching at Bing, Google, and Yahoo!.

- The Exploratorium's Pi Day Celebration Page
- The Joy of Pi
- The Math Forum Pi Day
- On Pi Day, one number 'reeks of mystery' (CNN)
- Pi Day, the official web site for Pi Day.
- TeachPi.org
- Visualizing Pi Info Graphic

- Selected lessons from Math Goodies instructional unit on Circumference and Area of Circles.
- Selected crossword puzzles from Math Goodies.
- Selected websites listed in the Process sections above.
- Search engines such as Bing, Google, Yahoo!

- Note the immediate feedback in the exercises from each lesson above.
- View the solutions to the crossword puzzles above.
- Write about Pi and Pi Day in your math journal.
- Share some of the online Pi Day activities you chose with a classmate or family member.
- Create your own Pi Day activity, such as a song, an image, a poem, or a poster.
- Share your own activity on our Facebook page or in our Facebook Discussions.

Congratulations! You learned about the meaning and history of Pi. You also learned about Pi Day and celebrated through activities you found on the web.

More sites:

http://www.piday.org/all-things-pi/

http://www.educationworld.com/a_lesson/lesson/lesson335.shtml

http://www.piday.org/

http://www.exploratorium.edu/pi/index.html

http://www.exploratorium.edu/pi/index.html

http://www.exploratorium.edu/pi/index.html

http://www.mathgoodies.com/webquests/pi_day/