Class assignment: "instructional video"

Well, some may find this funnier than the so-called "humorous video" I posted earlier. Actually, I started out wanting to make a longer & more serious one on how to scan, and collected all sorts of screen shots and even some video footage... Then I even found a program that would save screen-shots-in-motion. So I experimented with all these, and even made three videos--but none were satisfactory. Pressed for time, I went with this (and it is actually something I have to show students over and over) and, even as short as it is, it could stand some more work--getting the screen shots to show up clearly when compressed, etc.