RodriguezCapitalEdutainment

Ideal Math and Science Class Time (by khanacademy)

http://youtu.be/AkSGR_oj0rg

or

http://www.youtube.com/watch?v=AkSGR_oj0rg&feature=youtu.be

This is worth watching more than once to take steps toward understanding how to teach and learn math and science in practical ways.