Use the video links for extra practice/help.
https://www.khanacademy.org/math/algebra/exponent-equations/fractional-exponents-tut/v/basic-fractional-exponents
http://patrickjmt.com/exponents-evaluating-numbers-with-rational-exponents-by-using-radical-notation-basic-ex-1/
http://tutorial.math.lamar.edu/Classes/Alg/RationalExponents.aspx
http://www.regentsprep.org/regents/math/algtrig/ato1/fractionalexp.htm
HW: WS 6.4 (both sides) and Quiz 6.1 - 6.3 is tomorrow, 2/11.