Lesson Plan

The Most Famous Ratio of All

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This The Most Famous Ratio of All lesson plan also includes:

Pupils develop a definition of a circle based upon its radius in the 17th segment of a 28-part series. They determine the relationship between the radius and the diameter of a circle. To round out the lesson, they use the formula for the circumference of a circle to solve problems.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Provide several circles with diameters to measure and calculate the ratio of the circumference to the diameter
  • Lead a discussion on when it is best to use the fraction or decimal approximations of pi to assist with the computation
Classroom Considerations
  • The modeling exercise requires a bicycle wheel
Pros
  • Contains a modeling activity that holds learners' attention
  • Includes diagrams to provide a visual to the class
Cons
  • None
Common Core