Reflection: Connection to Prior Knowledge Circumference and Area - Section 1: Launch


Finding the circumference was a little challenging. Students substituted the diameter into the equation that they remembered and suddenly the area of the circle became the answer for the circumference. We worked on identifying the elements of the formula and exactly what the radius and diameter are and what they represent. I was excited that they had some knowledge of circles.

  Finding the circumference
  Connection to Prior Knowledge: Finding the circumference
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Circumference and Area

Unit 9: 2-D Measurements
Lesson 4 of 12

Objective: SWBAT calculate the circumference and area of circles

Big Idea: What’s the difference between circumference and area?

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circumference and area 2
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