I teach a section in a large lecture class at the associated college. Different schools vary widely on how easy this is to do and how much it pays, but it works out nicely for me.
That sounds awesome. Mind sharing how you got into that?
I saw an ad on a dorm wall and applied. They wanted resume, transcript, etc., and there was an audition. I'm teaching intro econ, but I didn't have a ton of econ experience before; they were mostly looking for teaching ability, as well as some basic grounding in the subject. The class is kind of its own thing (sui generis, as they say in the law), so different universities probably handle this very differently.
You're at Berkeley, no? I assume there are lots of opportunities to become a GSI there, presumably in the Legal Studies department. I bet you could also get involved in some of the academic help that L&S provides, though I never found out anything about that.
I like teaching a lot, and working with undergrads is really nice for getting outside the law school bubble, so I highly recommend it if you can pull it off.