Exponents Part 1 - definition, meaning and evaluating

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
8092 views | 4 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on exponents, you will learn how to evaluate problems involving positive exponents, with the base being either positive or negative. The base is multiplied by itself a certain number of times, where that number is the exponent. You will also learn how to differentiate between the base and exponent when a negative sign is present, and how to properly place parentheses to indicate the base. Finally, you will discover how to express the opposite of a number and the power of 1. By the end of this lesson, you will have a thorough understanding of how to evaluate exponents with ease.

Lesson Description:

Shows how to evaluate problems b^n with positive exponents, but where base may be negative. Explains difference when negative sign is in or out of the parentheses.

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

Questions answered by this video:
  • What is the basic meaning of how to evaluate with exponents?
  • What is an exponent and how do you evaluate an exponent?
  • What does it mean to have an exponent?
  • What do 5^2, 6^3, 3^4, and 2^3 equal?
  • What is a base and how is it used in evaluating b^n?
  • How do you find (-8)^2, (-5)^3, or (-2)^4?
  • How can you find -9^2 and how is it different from (-9)^2?
  • What is the difference between (-2)^3 and -2^3 and what do they equal?
  • What is 7^1?
  • What is 1^5?
  • What does (-1)^7 equal?
  • Where can I find practice problems for evaluating bases raised to an exponent?
  • Staff Review

    • Currently 3.0/5 Stars.
    This video is a very basic introduction to what exponents are, what the terms stand for, and how to evaluate bases to an exponent. This lesson explains clearly what it means to have a base raised to an exponent. The concepts are laid out for beginning Algebra students who are just learning about exponents. The difference between the negative sign in the base being inside and outside of parentheses is shown with multiple examples. The major strength of this video is in its many example problems that show many different situations.