Conics Introduction and Parabolas

This Conics Introduction and Parabolas lesson plan also includes:

Where did conic sections get their name? The equation and graph of a parabola are developed from the definition of the conic section. Teacher examples on graphing the equation and writing an equation from the graph round out the plan.

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CCSS: Adaptable
Instructional Ideas

  • After developing the equation of a parabola from the definition, compare what is known about quadratic equations and the equation of parabola, both algebraically and graphically
  • Extend the lesson to discuss the changes if the vertex was not at the origin; start with vertical or horizontal shifts before combining the two shifts
Classroom Considerations

  • Only refers to parabolas with a vertex at the origin
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information

  • Provides a visual representation of what constitutes a conic section

  • No answer key provided
Common Core