Finding the Domain by Investigating Continuity

Connect domains of functions to continuity with a video that first shows how to find the domain of a cube root function. It then explains how this domain relates to the continuity of the function.

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Instructional Ideas
  • Have learners find the domain of the given function on their own before watching video
Classroom Considerations
  • Pupils must have knowledge of continuity and of domains
  • Note that the video refers to third roots; individuals should know that this is the same as cube roots
Pros
  • Shows graph to confirm results
Cons
  • Focuses solely on cube root functions and does not consider other types of functions