Activity

Circle-Square

Curated and Reviewed by Lesson Planet

How do the area and perimeters of circles and squares compare? A clever video illustrates the change in the area of a circle and square while their total perimeter stays the same. The task is for learners to predict the point where the area of the circle and square is the same.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Have pupils create a table estimating area and perimeter of the figures at different points
  • Use string to cover the area of a square and circle with equal perimeters; compare their lengths
Classroom Considerations
  • Expects a strong understanding of perimeter and area of circles and squares
  • This content requires Adobe Flash to view
Pros
  • Includes an interactive component
  • Provides cues for questions throughout the lesson
Cons
  • None