Fractional exponents can be just as powerful as integer exponents. A short YouTube video shows how to deal with rational exponents. It begins with an exploration of exponents that are unit fractions of the form 1/n and then looks at all fractions m/n.

Concepts

exponents, fractional exponents

Show More Show Less

Additional Tags

math

Show More Show Less

Instructional Ideas

• Use the video as part of a review
  

Classroom Considerations

• Pupils should already be familiar with radicals
• Note that the video defines a^(m/n) as the mth power of the nth root of a, but does not mention that it is also equivalent to the nth root of a^m
  

Pros

• Shows each step of the work
  

Cons

• Lecture-style treatment of the subject may not be helpful for all viewers
  

Common Core

HSN-RN.A.1