Instructional Video

Completing the Square—Plotting Quadratics

Curated and Reviewed by Lesson Planet

Where is the turning point? The presentation demonstrates how the process of completing the square finds several points in the graph of a quadratic. One of the most important points found is the vertex of the graph. The video shows where to find the point in the process of solving a quadratic by completing the square.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Conduct a review of the process of completing a square
Classroom Considerations
  • Individuals should know the relationship between the intercepts and the solutions and constant term of a quadratic
  • The class should be aware of how to determine if a graph opens upward or downward
  • This video is hosted on YouTube
Pros
  • Uses color coding to show the relationships between numerical values and points on the graph
  • Provides examples for the class to work
Cons
  • None