Fractions as Coefficients

When fractions are used with variables in algebraic expressions there are things that do not necessarily look alike but that are actually equal to each other. For instance "one-half x" is the same as "x over 2." This video is intended to clear up confusion related to that fact.

Percent (and Decimals and Fractions)

This three-part presentation covers the definition of percent and the way in which to alternate between forms:fractions, decimals and percent.

http://www.youtube.com/watch?v=cXAOvT1jiKc

http://www.youtube.com/watch?v=186rCTCwY1k

http://www.youtube.com/watch?v=LO2y-bp9Hds