25 Best Ways to Celebrate National Pi Day

Calling all mathletes, engineers, scientists, and STEM teachers! Calling all math students and statisticians! (Yes, YOU!) Put down those calculators and tech gadgets and get ready to celebrate.

Whether you're a math nerd or a wannabe, March 14 is our day. It's the time when those of us who dance in the transcendent, resplendent beauty of numbers unite to celebrate our irrational love of pi.

Yes, pi (π) — that funny looking Greek letter that represents the ratio of a circle's circumference to its diameter. No matter how large or small a circle is, you can divide the distance around it by the distance across and get the same cool number. Mindbending, huh? (Let's take a moment.)

Abbreviated as 22/7 or 3.14, pi is a practical, universally applicable, and never ending constant. Today, we use it in a variety of fields to determine area, surface area and volume for objects that are

• circular
• cylindrical
• cone-shaped or
• pyramid.

Examples of disciplines that use it include astronomy, architecture, engineering, navigation, and construction.

To help get your Pi Day celebration off the ground, here are 25 ideas for honoring our favorite constant. Have a STEM-tastic celebration!

Write a "pi-ku," a math version of the traditional haiku. While the haiku is a Japanese poem with 17 syllables, broken out in lines of 5-7-5 syllables, the "pi-ku" is even more abbreviated. It follows a 3-1-4 syllabic pattern and enjoys a math-related theme. Here are some original samples to inspire you:

Pi transcends
pure
rational thought.

Beautiful
Math,
Your problems tease!

Elegant
Math ...
Universal.

Challenge your friends to a pi/e naming contest. Depending on the type of friends you have (mathletes or mere wannabes), see who can name the most types of pie or the most digits of pi. Award a pie or pi-themed prize to the champion.

Why not combine two of your favorite activities—math and eating? There is no shortage of round-shaped foods. Consider round fruits (e.g., oranges, melon balls, bananas sliced in "coins"), round crackers, meatballs, round cookies, cupcakes, etc. To take the math theme one step further, consider the following pi-inspired foods. Some of them are a bit of a stretch, but hey, it's all it good fun!

This will take some planning, but the fun will pay out in dividends. Think of the Instagram photos and the memories you'll take away from the event!

• Organize a pie-thowing or pie-in the face contest, with proceeds going to charity. Set a fundraising goal of $314, or more!
• Hold a pie speed eating contest, giving contestants 3.14 minutes, all the pie they can eat, with no hands allowed.
• Have "pi-ggyback" races, with two contestants holding a teammate horizontally (more or less forming a π) and racing other teams of three across a finish line.
• Learn to play the card game "pi-nochle" or beat a pi-ñata.
• Challenge yourself to name the digits of pi with an on-line game, such as the one here. Or, name words that begin with "pi," some as those in the on-line game here.

5. Hold a Pi Memorization/Recitation Contest

Pi is never ending and has been calculated to trillions of digits. But don't let that stop you from holding a contest to see who among your nerd friends can correctly recite the most digits. To assist in your training, Google even has a training app. Come on! You've got this!

Since March 14 is also Albert Einstein's birthday, give a nod to the Nobel prize-winning theoretical physicist and philosopher of science by holding an Einstein look-alike contest and sharing Einstein quotes. There are so many myths about the genius that his birthday would be a fitting day to set the record straight.

Dazzle and amaze your friends as well as mere strangers with your knowledge of how pi is useful in geometry, engineering, trigonometry, astronomy, physics, and other endeavors. Point out practical problems that pi helps us solve. Remind them what 22/7 is and why it's important. Spread the enthusiasm!

In a back-to-basics challenge that features quick thinking, you might be surprised how easily math formulas, definitions, and basic concepts have gotten rusty.

There are so many math-related movies to choose from. In the following films, for example, consider the role that math has had in history and in human relationships. Did math ultimately help unite people or separate them? Did it create new opportunities or barriers? (And if so, what kind?) Is it a more a gift or a practiced skill? Go ahead—talk about the impact of math in our lives.

All that calculating can leave you antsy. Grab some friends and get moving! Hold a fundraising event involving 3.14 miles (or km if you wish) and donate the money to charity.

For each digit of pi, divide your participants into groups and have them take photos of their found objects rather than bringing back actual items. Set a time limit and specify where they're allowed to roam, then disclose your pi scavenger hunt objects.

For the following digits of pi (3.1415926 ), here's an example of objects you might hunt for in a school environment:

• 3 scientific calculators
• 1 high heeled shoe
• 4 vegetables
• 1 handshake with a teacher
• 5 university jerseys, each a different school
• 9 pennies, stacked
• 2 pipettes
• 6 mechanical pencils.

12. Send a Pi Day Card or Send an E-Card

Spread your infinite love of math with a card you make yourself or with an e-card, available here.

Write out as many digits of pi as possible and see if you can find you and your friends can find your birth dates, phone numbers, zip codes, social security numbers, and other personally identifying numbers.

14. Estimate Pi by Throwing Frozen Hot Dogs

Estimate pi using Buffon's needle, a problem of geometric probability. For an explanation of what it is, click here. Whether you drop needles or toothpicks on a sheet of paper or throw frozen hot dogs on the floor is up to you.

15. Tell Pi Puns and Math Jokes

Who says math isn't funny? Relax a little and tell a few math jokes. Here are some to help get you started.

Examples include: pi-lot, pi-zzazz, pi-ous, pi-rate, pi-neapple, pi-lates, etc. Be sure to emphasize the "pi" syllable and keep it up, even it you receive eye rolls. It's one day a year, folks. Your friends can tolerate the math madness for 24 hours.

There are a number of clever math t-shirts available, as well as pi earrings. Don't be afraid to proclaim yourself a math nerd.

After all, you're in cool company. Think Albert Einstein, Bill Gates, Steven Hawking, Sergey Brin (Google's co-founder), Marie Curie and many more. All were math majors in college.

18. Create Your Own Pi Art, or Admire That of Others

Take a camera and explore the world around you. Where can you find the symbol pi? How can you express yourself creatively, artistically in representing the Greek letter or the digits of pi? (Examples of what others have achieved are shown below.) Or, if you prefer, admire the art of Salvador Dali, a famous artist who used the principles of pi and phi in his art.

Friends and strangers will be especially eager to welcome your math trivia and Einstein quotes if they accompany round candy. Consider some of the following:

Advocate learning about math by sharing a pi-themed story with a youngster you know. Popular selections include:

• Sir Cumference and the Dragon of Pi by Cindy Neuschwander
• Why Pi? by Johnny Ball
• Pi: A Biography of the World's Most Mysterious Number by Alfred S. Posamentier
• The Joy of Pi by David Blatner

21. Examine the Mindbending Significance of Pi in Nature

Pi can be found, for example, hiding in the double helix of DNA, the rainbow, and the pupils of our eye. Do some research to uncover pi's impact in the natural world, then share what you've learned with a friend.

22. via Instagram, Twitter, Facebook, G+ or Other Social Media, Share a Personal List of the Top 3.14 Reasons Why You Love Math

Although STEM fields are gaining traction as viable career choices, we have to break through the nonsense that science, technology, engineering and math are boring and uncreative fields. Share your passion for what you do. Inspire others to ask questions and follow in your footsteps.

You'll be the envy of your math class with a temporary tattoo of the Greek letter. Where you put it is up to you. (Hint: not the forehead. That would be just ... weird.)

25. Generate Your Own Math-Themed Word Search or Crossword Puzzle

Create your own math-themed puzzle here. Challenge friends with common terminology from geometry, trigonometry, physics, and related fields that use pi. Include famous scientists and mathematicians, architectural wonders based on pi, engineering uses of pi, and more.

• "Mathematics is the music of reason." - James Joseph Sylvester, English mathematician
• "Without mathematics, there's nothing you can do. Everything around you is mathematics. Everything around you is numbers." - Shakuntala Devi, Indian writer and "mental calculator"
• "Pure mathematics is, in its way, the poetry of logical ideas." - Albert Einstein, theoretical physicist and philosopher of science
• "Mathematics allows for no hypocrisy and no vagueness." - Stendhal, French writer
• "Mathematics is the sister, as well as the servant, of the arts and is touched by the same madness and genius." - Marston Morse, American mathematician
• "Poetry is a form of mathematics, a highly rigorous relationship with words." - Tahar Ben Jelloun, Moroccan writer
• “The essence of mathematics is not to make simple things complicated, but to make complicated things simple.” - Stan Gudder, American mathemetician
• “The mathematical sciences particularly exhibit order, symmetry, and limitation; and these are the greatest forms of the beautiful.” - Aristotle, ancient Greek philosopher
• “The highest form of pure thought is in mathematics.” - Plato, ancient Greek philosopher
• “Yes, we have to divide up our time ... between our politics and our equations. But to me our equations are far more important, for politics are only a matter of present concern. A mathematical equation stands forever.” - Albert Einstein, Nobel prize winning theoretical physicist