Unit 3, Lesson 3# Exploring Circumference

Open Up Resources 45 min(s)

Understand as the constant of proportionality in the relationship between the diameter and circumference of a circle. Recognize that the relationship between the diameter and circumference of a circle is proportional and the constant of proportionality is a little more than 3. Let's explore the circumference of circles. Learning targets: students can describe the relationship between circumference and diameter of any circle.