This year I'm a TA leading discussion sections, after a two year break from any sort of teaching after my stint as a high school teacher. Thus far I've run my sections with a combination of slides w/ pics to reinforce lecture topics, discuss these ?s with small groups of peers, me leading a follow-up discussion, going over rubrics for next assignment, and video clips. However, I fear this is the same "mode" I'd used when planning the days for my HS courses. Students today in particular were drifting off or a bit passive, after they felt they'd made their 1 or 2 contributions for their participation points for the day. This may reflect a deeper-seated fear of having to be "on" for the entire 2 hour duration, which strikes me as an awful long time.
So, how can I be a better discussion facilitator? Or, any ideas for activities, prep, additional prep students could do (instead of 1 page pre-writing responses) that are more appropriate for college students?