Math
Teacher Zone
http://teachers.tenmarks.com/ 1000's of math video lessons
Math A Tube
http://www.mathatube.com/
Khan Academy
http://www.khanacademy.org/
Math TV
http://www.mathtv.com/videos_by_topic
Lessons cover basic mathematics and Algebra. Math TV videos are not easily embedded in other websites, but they are free and you can create your own individualized playlists.
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