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Lesson Planet
This Equations of Circles: Finding the Equation of a Circle interactive also includes:
- Conic Sections: The Circle
- Student Reference
- Join to access all included materials
It's all about location and size. With the aid of the interactive, pupils explore the relationship between the location and size of a circle and its equation. The learners use that relationship to determine the equation of a circle given its center and radius and vice versa. Given an equation in standard form, users rewrite it in general form.
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5 Downloads
CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Working in pairs, have one classmate graph a circle and the other determine the equation of the circle, then write it both in standard and general form
Classroom Considerations
- Requires knowledge of squaring a binomial
- Individuals using the interactive must sign up for a free CK-12 account
Pros
- Includes feedback and hints for problems
- The additional material provides extra examples and a problem set
Cons
- Contains an incorrect coefficient answer in problem number three