I will be undertaking my first teaching position as a graduate student in the fall - I will be leading two of the discussion sections for an undergraduate biology course.

What sorts of things should I expect to teach in a discussion section for a science course and how should I teach them?

When I was an undergraduate and took the same course (same material, different university), the graduate students had to re-teach the lectures in our equivalent of discussion sections, as if it was brand new material because the professor was not a very good lecturer. I know the professors for whom I will be teaching these sections are rather good lecturers, so I do not expect to have to re-teach everything to the same extent. I have several concerns, though:

  • These sections are about twice the size of those at my undergraduate university, and I would like to encourage regular class participation of some sort, to make sure students stay engaged.
  • The material is undoubtedly challenging so I am wary of bringing in too much new material, such as discussion of scientific papers, which is the first kind of discussion that springs to mind. (Also, someone will inevitably ask "is that going to be on the exam?")

Because the material is challenging, I could probably do with some review. But how to I keep a large number of students engaged (and participating) through repetition of lecture material? Ostensibly, the reason for having discussion sections is so that there is actual discussion.

  • 2
    Have you asked the instructor? (The correct answer to "Is this going to be on the exam?" is always "It is now!")
    – JeffE
    Jul 1, 2013 at 5:34
  • Echoing @JeffE's comment: what is expected by your manager of these discussion sessions? The term "discussion" to me suggests something like a tutorial, where there is a significant amount of student input in the session and is not just a rehash of the lectures. To my mind, a discussion session is an opportunity for you to show - amongst other things - how the subject material relates to the "real world", e.g. showing an example of how the particular technique/analysis/method is used. In other words, answering the prennial student question, "Why are we learning this?"
    – Nicholas
    Jul 1, 2013 at 11:02
  • I haven't yet spoken to the instructors, but I did speak to a former student and looked at last year's material: the discussion sections look like review plus problem sets, which I think relates to the point made by @Nicholas. I also found out that we are having a seminar during our university-wide teaching orientation specifically on what to do in discussion sections for science classes, so I think I'll get answers there. Thanks to both of you!
    – user7123
    Jul 1, 2013 at 17:47
  • 2
    @dd3 once you attended that seminar, please remember coming back here and answering your question.
    – silvado
    Jul 2, 2013 at 10:24

2 Answers 2


I can say with 100% confidence that it will depend on the professor(s). That being said, you should expect to:

  • Reteach all content. You won't actually have to, but you should of course be able to. Students often use discussion sections to ask questions they don't want to ask the prof for fear of "looking dumb."
  • Give meaningful practice problems and explanations the students should familiarize themselves with for an exam.
  • For some classes, actually lead a discussion of topics.
  • Just use it for office hours.

When I taught discussion sections (for calculus, at a large U.S. state university), the students always appreciated it when I worked homework problems at the board for them. (The homework sets were large enough so that we didn't get through nearly all the homework.)

My experience is that with discussion sections there is a little bit of a good-cop/bad-cop game going on; the professor is the bad cop and you are the good cop -- embrace and enjoy the role. Help them with their homework. If appropriate, look up the professor's old exams, find out what they are like, and work out similar problems in discussion.

In short, help your students get through the course.

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