I'm teaching advanced undergraduate quantum mechanics in the spring for the first time, using Griffiths' Introduction to Quantum Mechanics. (It's basically "mathematical methods of quantum mechanics: eigenstates, bra-ket notation, ladder operators, WKB approximation, etc). If you've taken or taught this class, I'd like to know how it was done and how well it worked. The class is heavy on the derivations, and a straight-up lecture isn't going to be very helpful, because there are few things more boring or less useful than watching someone else do algebra. Enrollment is currently small (4 students), so I would like them to present derivations in class, under my watchful eye. (It might be the first time I ever grade students on "participation", which will be interesting too.) What have y'all seen and/or done? General thoughts about teaching advanced heavy-on-the-derivations classes are welcome too.