The shape of the graph
Animations
Animation: The Mean Value Theorem over a parabola. [Lane Vosbury]
Animation: The Mean Value Theorem over a cubic. [Lane Vosbury]
Animation: Watch points as they move from areas which are concave down (in red) to concave up (in blue). [Lane Vosbury]
Online problems
Problems: Several problems on finding maxima and minima on a closed interval. [Visual calculus]