Pi Day Paper Pie Craft
March 14 (3.14) is Pi Day — the celebration of the mathematical constant π. A paper pie craft made from circles (appropriate geometry!) is a fun way to celebrate. Children make a realistic-looking paper pie in their favorite "flavor" and learn about circles and Pi in the process.
What You'll Need
- Brown cardstock — for the pie crust
- Felt or cardstock — in fruit colors: red (strawberry), purple (blueberry), green (key lime)
- Scissors — to cut circles and shapes
- Glue
- Optional: brown paint — to make the crust look baked
How to Do It
Step 1: Make the crust. Cut a large circle from brown cardstock. Crimp the edges with fingers to look like pie crust.
Step 2: Make the filling. Cut a slightly smaller circle in the filling color and glue inside the crust.
Step 3: Add texture. Add tiny red circles (cherries), small dots (blueberries), or a lattice-crust design.
Step 4: Add a "slice" flap. Cut one pie-slice-shaped wedge from the pie and fold it back to show the filling inside.
Step 5: Label with Pi. Write "π = 3.14159..." on the pie crust.
🎓 Skills Your Child Will Develop
Circle recognition — Using circles as the primary art form reinforces shape knowledge.
Introduction to Pi — A child's first exposure to π as a special number associated with circles.
Tips & Variations
- Have children measure the circumference and diameter of a real plate and calculate π approximately.
- Make 3 different flavors of pie and arrange as a Pi Day display.
My Two Cents
The concept of Pi doesn't need to be taught at depth for preschoolers — the important thing is exposure to the idea that circles have a special mathematical property, and that mathematicians celebrate it with pie. The pun is the whole point!
