Derivative and Tangent Line (using slope and limits)

Derivative and Tangent Line-Part 1

http://www.youtube.com/watch?v=CgXWuRgAL6Q

Derivative and Tangent Line-Part 2

http://www.youtube.com/watch?v=TpSZzK4iDbk

Derivative and Tangent Line-Part 3

http://www.youtube.com/watch?v=uo-kggYntBE

Derivative and Tangent Line-Part 4

http://www.youtube.com/watch?v=MdFs9ra65pk