After taking my Geometry students to the computer lab to show them how to use Geometer's Sketchpad for about the third time, I realized that they were learning a lot more about the program by just playing around with it, and by trying to get it to do things I hadn't thought of, so I changed my focus the fourth year and thereafter.
Instead of giving them a step-by-step list of instructions (which inevitably failed, since students would click the wrong thing at some point and end up in a place wh