Instructional Video

Rationalising the Denominator

Curated and Reviewed by Lesson Planet

Take the next step in simplifying radical expressions. The video shows how to rationalize the denominator that contains square roots. Examples contain simple radicals and ones that require using conjugates.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Review how conjugates are useful in eliminating square roots
Classroom Considerations
  • The class should know the term surds
  • Individuals need to be familiar with operating with square roots
  • This video is hosted on YouTube
Pros
  • Provides problems for the class to work
  • Contains closed captioning
Cons
  • None
Common Core