Wow! My students brought their homemade chocolate cakes, cupcakes, cookies, etc…so happy they enjoyed the Pi activities especially the eating part hahaha. Happy Pi Day everyone!

Here’s a Math Teaching Idea for my fellow MATH teachers. Tomorrow is PI day (3/14). I want to share this cool website and feel free to do any activity in your class related to PI.

Celebrate Pi Day (Middle School and High School Resources)
Two new Pi Day images have been released by Illuminations—pin them in time for 3/14/15 9:26:53. Also consider using these resources to celebrate Pi Day with your students:Apple Pi, Pi Line, Computing Pi, and Pi Filling, Archimedes Style!.

Tomorrow in my middle school math classes, we will celebrate Pi with this activity: Cutting π

Materials:
circular food (pie,cookies, crackers, pizza, cake, etc.)
string, scissors,tape, cling wrap and ziplock to cover the food when measuring

To Do and Notice:
Carefully wrap string around the circumference of your circular object. Cut the string when it is exactly the same length as the circumference. Now take your “string circumference” and stretch it across the diameter of your circular object. Cut as many “string diameters” from your “string circumference” as you can. How many diameters could you cut? Compare your data with that of others. What do you notice?

What’s Going On?
This is a hands-on way to divide a circle’s circumference by its diameter. No matter what circle you use, you’ll be able to cut 3 complete diameters and have a small bit of string left over. Estimate what fraction of the diameter this small piece could be (about 1/7). You have “cut pi,” about 3 and 1/7 pieces of string, by determining how many diameters can be cut from the circumference. Tape the 3 + pieces of string onto paper and explain their significance.

I will also ask my students calculate the circumference and area of different circular food then, we will eat and celebrate after all the MATH hard work.