Equations of Circles: The Sea of Happiness

This Equations of Circles: The Sea of Happiness interactive also includes:

Map this! Help your young mathematicians draw a circular island on a map. Given specifics of the location and size of an island on a map, pupils transform a circle to meet the given requirements. They then determine the location of the center and the radius using the equation of the circle.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Conduct a mini-review on completing the square
Classroom Considerations
  • The class should understand the equation of circles and how to determine the center and radius from it
  • Users must sign up for a free login account
  • Reveals the correct answer if necessary
  • Provides feedback on why the answer is correct for some of the challenge problems
  • None
Common Core