Every year on March 14 (3/14), math lovers around the world celebrate Pi Day—a day dedicated to the famous mathematical constant π (pi). At Mathnasium of Park City, we love any excuse to celebrate math in a fun way, and Pi Day might just be our favorite!
Whether you’re a math enthusiast or just love a good slice of pie, Pi Day is a great opportunity to explore the wonder and creativity of mathematics.
What Is Pi?
Pi (π) is the number that represents the relationship between a circle’s circumference and its diameter. No matter how big or small the circle is, that ratio is always the same: approximately 3.14.
But here’s where it gets really interesting:
Pi is an infinite number, meaning its digits continue forever without repeating.
The first few digits are:
3.1415926535…
Mathematicians have calculated trillions of digits of pi—and they’re still going!
Fun Facts About Pi
Here are a few fun Pi Day facts to share with your kids:
- Pi has been known for over 4,000 years. Ancient civilizations like the Babylonians and Egyptians used early approximations of pi in their calculations.
- Pi Day was first celebrated in 1988. Physicist Larry Shaw organized the first celebration at the San Francisco Exploratorium.
- Pi Day is an official holiday! In 2009, the United States Congress recognized March 14 as National Pi Day.
- March 14 is also Albert Einstein’s birthday. Yes, Pi Day shares a birthday with Albert Einstein!
- There are competitions to memorize digits of pi. The current world record holder memorized over 70,000 digits.
- Why pie? Because “pi” and “pie” sound the same, many celebrations include actual pie—one of the most delicious math traditions around.
Celebrate Pi Day with Mathnasium of Park City
This year, we’re inviting the community to celebrate Pi Day with us!
March 14, 2026
Drop in anytime from 2:00–4:00 PM
Mathnasium of Park City
Students and families are welcome to stop by the center to celebrate math, enjoy Pi Day treats, and turn in their completed Pi Day Bingo Challenge sheets.
Our Pi Day Bingo Challenge
Leading up to Pi Day, students can participate in our Pi Day Bingo Challenge—a fun way to explore math at home.
The challenge includes activities like:
- Learning digits of pi
- Sharing a math fact with a parent
- Measuring a circle’s circumference and diameter
- Reading a math book
- Playing a math game with dice
- Solving a puzzle
Students can complete activities across the board to make Bingo lines or even go for a Blackout.
When they bring their Bingo sheet to our Pi Day celebration:
1 Bingo = 1 raffle entry
Blackout = 2 raffle entries
We’ll also have Pi Day treats waiting for everyone who participates!
Why We Love Pi Day
At Mathnasium, we believe math should be fun, engaging, and confidence-building. Pi Day is a perfect reminder that math isn’t just something students do in school—it’s something that appears everywhere in the world around us.
From circles and wheels to architecture and engineering, pi plays an important role in how we understand our world.
And sometimes, it’s also just a great reason to enjoy a slice of pie.
Join the Fun!
We’d love to see you at our Pi Day Open House and Bingo Celebration.
Print your Pi Day Bingo sheet here, complete the activities, and bring it to Mathnasium of Park City on March 14 to celebrate with us!
Because at Mathnasium, every day is a great day for math—but Pi Day is extra special.
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