Going the Distance for Circles

This Going the Distance for Circles lesson plan also includes:

Publicize how distance is related to circle equations. Using the distance formula, teachers show young mathematicians how to develop the equation of a general circle. The class becomes aware of how to find the center and the radius from the equation and how to find the equation given a graph of a circle. Working in pairs, pupils start a brochure on conic sections by including the information about circles.

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CCSS: Designed
Instructional Ideas

  • Provide additional skills practice in finding the equation of a circle
  • Present a lesson on the cross-sections of a cone to introduce the types of conic sections
Classroom Considerations

  • Requires access to desktop publishing software

  • Contains a presentation to guide the direct instruction
  • Provides suggestions to extend the lesson

  • Mentions a template for the brochure that is not included
Common Core