Jenny's other post was an example that I think Garr Reynolds and Dr. John Medina would approve of. It teaches chemistry in a very visual way. While I am sure some people will object to parts of this, the theory behind it is one that is definitely OK: We learn better with visuals. See what you think:
Chemistry was not really a favorite of mine when I was in school. No science was, really. But how much more might I have learned if I had had something like this to watch? The concept of attraction and separation of elements is made real. It is visual. It is in my brain.