Circumference and diameter differ by just a factor of pi. A short video shows viewers how to calculate circumference given the diameter. It also gives an example of determining the diameter given the circumference.

Concepts

circles, circumference

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Additional Tags

math

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Instructional Ideas

• Use the resource as part of an intervention strategy
  

Classroom Considerations

• Learners should be able to use the pi key on a calculator
• Note that the resource is intended for pupils studying for the GCSE and uses notation that may not be familiar to US learners
  

Pros

• Shows each step of the required work
  

Cons

• Handwriting is difficult to read at times
  

Common Core

7.G.B.4