depending on what math youre in check these out
http://www.youtube.com/watch?v=IxWfRmYbHYc&list=ECA0B3471F221DBEBA
http://www.youtube.com/watch?v=4vVmsyP4G_I&list=EC53A392AD7B7FE261
http://www.youtube.com/watch?v=sGURwvXB2H0&list=ECA5A1D544934F701B
im learning algebra 2 this way so i can test into higher math in college. its working pretty well so far