# Rational Exponents 1

Taught by YourMathGal
• Currently 4.0/5 Stars.
6481 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

Part 1 covers the meaning of a fractional exponent when the numerator is 1, and provides examples.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

• What is a rational exponent?
• What do you do if there is a fraction in the exponent?
• What does 5^1/2 mean?
• Why does 5^1/2 * 5^1/2 = 5?
• Why does 5^1/2 equal the square root of 5?
• Why is an exponent of 1/2 the same as a square root?
• What does the 1/3 power mean?
• Why is 10^1/3 the same as the cube root of 10?
• What is 16^1/2?
• What is 64^1/3?
• What is the definition of b^1/n?
• Why does b^1/n equal the nth root of b?
• What does 81^1/2 equal?
• What is 16^-1/2?
• What is -27^1/3?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson is a great explanation of why an exponent of 1/2 means the same thing as a square root. This lesson really does a good job of explaining the concept of fractional exponents and how to use them. Several example calculations with fractional exponents are shown and explained in this tutorial.