Use the links for more examples of finding the derivative by using the definition:
https://www.youtube.com/watch?v=WERgBgi4hg4
https://www.youtube.com/watch?v=vzDYOHETFlo
This video shows how we get the definition of the derivative by taking the limit of the slope of the secant line.
https://www.youtube.com/watch?v=2wH-g60EJ18&list=PLDE077A2EC488104D
We tried to show a short video, but had some tech issues. So please watch it.
http://www.calculus-help.com/the-difference-quotient/
Students were able to get a quick look at their tests. We will talk about them on Monday.
HW: Start working on book 2.1 (or webassign)