This applet and accompanying activities illustrate the Mean Value Theorem through a series of interactive exercises. The user can, for a given secant line, scroll across values of x until a point is found where the tangent line at x is parallel to the secant line.
Open the pdf file and applet in separate windows (or print the pdf file instead) so you can work through the suggested activities.
Click here to download all five LaTeX activity files as a single compressed file. These have the same content as the posted pdf files. They are included in LaTeX form for those who would like to edit them for their own use.