Instructional Video

Intermediate Value Theorem to Prove a Root in an Interval

Viewers os this short video learn how to prove that a root exists in a given interval without having to determine the actual value of the root. Applying the Intermediate Value Theorem is most helpful in this situation.

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Instructional Ideas
  • Have the class graph the example function to verify that there is a root on the interval (1, 2)
Classroom Considerations
  • Learners must already be familiar with the Intermediate Value Theorem
  • Pupils should know function notation and how to evaluate polynomial functions
Pros
  • Shows all steps needed to reach the answer
Cons
  • Uses a graph that does not match example function
  • Covers only one example