Apple Pi

Grade: 6th to 8th
Author: Christopher Johnston

Using estimation and measurement skills, students will determine the ratio of circumference to diameter and explore the meaning of . Students will discover the circumference and area formulas based on their investigations.

Math Content 

Students will:

• Discover the ratio and meaning of π. 
• Discover the formula for finding the circumference of circles.
• Discover the formula for finding the area of circles.

Lessons

	The Ratio of Circumference to Diameter Grade: 6th to 8th Calculate the ratio of circumference to diameter for each object in an attempt to identify the value of pi and the circumference formula.
	Discovering the Area Formula for Circles Grade: 6th to 8th Discover the area formula by using your knowledge of parallelograms.