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# 21 Pi Day Resources for your Classroom

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Around the world, March 14th (3/14) is recognized as the day to celebrate Pi, which, of course, is the ratio of a circle’s circumference to its diameter.  The “earliest known” celebration of Pi Day was in 1988 when physicist Larry Shaw and staff of the San Francisco Exploratorium marched around a circular space and then ate fruit pies! Since then, Pi Day has become a classroom and cultural phenomenon. Whether you are looking for activities to conduct in the classroom, special Pi day gear, or a unique video to highlight the occasion, keep reading for a plethora of Pi Day fun!

Let’s start off with lesson ideas offered by PBS LearningMedia that include background essays, class discussion topics, videos, interactives, and math in the real world!

1. Pi & the Fibonacci Sequence
2. Calculating Pi with Darts | Physics Girl
3.  Measurement and Geometry | Pi, Circumference, and Radius
4. Dunk Tank: Circles!

Are you thinking about holding a contest to see who can memorize the most digits of Pi?  Why not make it even more interesting with a staff vs. student vibe?  Check out the following resources to assist you in this quest.  These are great for any grade!

Experiment and Discover
Let students discover Pi for themselves with these simple tools: a can, string, and ruler.  Get inspired by a complete lesson plan, or replicate the experiment using an interactive video that includes an essential review of key vocabulary terms!

1. Discovering Pi Lesson Plan
From LearnNC, Designed for Grades 6-8
2. Circumference | School Yourself Geometry
Math interactive, Designed for grades 6-10

A Musical Interlude
Perhaps you’d like to introduce music into the discussion. Witness for yourself as two different artists uniquely and beautifully bring Pi to life.

1. What Pi Sounds Like (3:23)
2. Violin Music from Pi: A Piece of Pi (4:15)

Videos that Hit The Mark
If you’d like to share a fun, short, educational video or infographic to highlight the Pi Day significance, these resources  hit the mark in more ways than one!

Pi-sitively Unique
Are you still searching for something Pi-sitively unique?  Then search no more!  This final set of resources might be last, but they are far from least.  If you can’t find what you are looking for after searching these Pi-credible sites, then it is quite likely what you seek isn’t in Pi-xistence!

1. You Pour, I Choose
From 3 Act Math, a definite must see!
2. Exploratorium
3. PiDay.org
4. Joy of Pi
5. Celebrate Pi Day with NCTM

Lorraine C. Harmer, MLD is a Mathematics and Leadership Specialist who has 20+ years of experience in the education industry. Selected as a 2016 PBS Digital Innovator, Lorraine is a cutting-edge leader who expertly teaches in both virtual and "brick-and-mortar" settings. She finds her greatest joy in guiding students and teachers to unsurpassed success! To learn more about how Lorraine can help your school achieve excellence, check out her LinkedIn or email her directly at lorraineharmer@outlook.com

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