Well, if you want to wow him, I'd first direct him to the gallery here.
As for learning Anim8or, what I personally did was print out a copy of the Anim8or manual and placed it in a binder. I read it through, experimented with Anim8or, then I'd read it through again (gaining a lot more from it), experimented with Anim8or some more, etc.
Tutorials are of course a big help. It's easy to say "The extrude function extrudes all selected faces", but there's no substitute for seeing exactly how and when to use any given function.
If he's going to take the plunge with organics, i.e. faces or bodies, it would be best to learn edge looping from the get-go, rather than having to go back and learn it later.