This instructor in this video, Sal Khan, continues with fractional exponents. Mr. Khan uses computer software (with different colors) to demonstrate how to solve Level 3 exponents. Several examples are modeled using a step by step approach. (09:13)

This instructor in this video, Sal Khan, continues with 2 more exponent rules with an introduction to composite problems. Mr. Khan uses computer software (with different colors) to model several examples of how to apply rules of exponents.

This instructor in this video, Sal Khan, introduces exponent rules. Mr. Khan uses computer software (with different colors) to model several examples of applying exponent rules. (09:43)

Video uses an computer software and with different colors for emphasis. Uses basic exponent knowledge, but exponents are negative. Remember exponents are not multiplication, for example 2 to the -3 power is equal to one-half to the third power. Wh...en there is a negative exponent you take the inverse of the base number. Then to solve it you would take one-half times one-half times one-half which is equal to one-eighth. Examples using fractions to negative exponents are also done. Then other examples are done. This video is for middle school students.[more]

Intuition on why a^-b = 1/(a^b)... (and why a^0 =1).This instructor in this video, Sal Khan, continues with negative exponents. Mr. Khan uses computer software (with different colors) to illustrate his points.

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