You should plan for your presentation to take up eighty minutes, counting questions and discussion, so your talk should by itself last forty to fifty minutes.
I expect the final third of the course to be left for student presentations. Be aware that not everyone can be scheduled for the final week. Furthermore, given that you will also be writing term papers, avoiding the late weeks for the presentation is advisable.
There should be some feedback on the presentations from other members of the seminar both orally in the discussion period and in writing. (There will be a "short paper" assignment to critique the presentation.)
The term paper will typically be a written reworking of the presentation with the benefit of the discussion (oral and written) following the presentation.Any use of sources should be footnoted adequately. If you got an idea from somewhere, indicate that. If you refer me to a book or an article be sure to give me enough information (title, author, edition, page number) for me to find the reference. If you think I may not have access to the article, you should consider providing a photocopy of it. Failure to provide adequate citations may hurt your grade.