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Celebrate Pi Day With Activities For Unlimited Fun

Posted 02/10/2025 by TI Staff

Any day is a better day with a little π (pi). Let’s celebrate Pi Day with some fun and meaningful activities that show students how the mathematical constant shows up in real life.

Happy Pi Day activities
Nsπred activities
Pi-themed coloring pages
You’ve got some pi on your shirt
Pi-themed stickers
Webinars with pi

Happy Pi Day activity worksheets

In these activities, students learn how to gather and analyze the data of circular objects. Students will plot the data on a graph, then calculate the slope of the data points. What will they observe about the slope?

Choose from two quick-start activities, “Ready-Made Pi” or “Homemade Pi.” Ready-Made Pi is great if class/prep time is short. If you have time for Homemade Pi, then let students experiment with objects (or treats!) brought from home.

Either way, the included calculator keypress quick tips sheet will keep students moving forward!

Download the worksheets

InsPIred activities

Are you a fan of the TI-Nspire™ CX II graphing calculator? If so, we have some extra insPIration just for you! Here are two of our favorites:

Comparing Pi and Roots

In this middle school math activity, students explore how the Pythagorean Theorem and the circumference of a circle can be related. It’s as easy as pi!

Get the activity files

Why Bigger Is Not Necessarily Better

Did you know that the tiny biological cells that make you are tiny for a reason? Explore this biology activity that uses pi to calculate the volume of these little bundles of life. Find out why bigger is not necessarily better when it comes to your cells.

Visit activity page

Everybody loves pi and coloring

These pi-themed coloring pages are a great activity for when you or your students just need a mental break or some downtime. Even better if coloring with a slice of pie!

Download the coloring pages

You’ve got some pi on your shirt

Make your own DIY T-shirts, bags, cups, etc with our “Peace, Love, Pi” themed design. We’ve found that pi tends gets on everything!

Make your pi shirt!

We’re a bit stuck on pi

Add a little extra pi-zzazz all year long with these pi-themed stickers. Choose from an Avery label sticker template or DIY print-and-cut sticker designs. Students will love collecting these stickers as rewards!

Get the sticker templates

Explore the world of pi with webinars

The world of pi is vast! Dive in-depth with webinars for additional ideas on how to explore pi in a relatable way for students.

Pizza Pi: Nspiring activities for Pi Day

Our latest webinar seeks to settle the debate — possibly once and for all — which city has the best pizza, Chicago Deep Dish or New York Style?

Celebrate Pi Day with webinars on YouTube

Discover more of our pi-themed webinars on YouTube for other ideas to make it a happy Pi Day, including:

Math love is infinite

Let’s inspire a love for math that lasts! Follow us on social @TIcalculators and stay updated on fun ways to make your math classroom a positive, engaging place for students to learn.

Connect with us on Pinterest for more inspiration and curate your own treasure trove of ideas. You’ll also find our math activities board featuring themed activities all year long.

Also, sign up for emails to get notified when new teacher resources become available.

We look forward to spreading math love with you throughout the year!

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