I am a non-native speaker and writing my cv. In my subject (mathematics), there are small exercise groups where you have to grade the students' homework and discuss it with them; some are hold by students; some by PhD students or postdocs.
What are the correct terms if you have done the following things:
- You are a (PhD) student student holding the exercise group, grading homework, but nothing more.
- You are the one who is in charge of organization, i.e., you design questions for homework and the exam, you make announcements, moderate the meeting of those people having an exercise group (see 1), but you don't have an own exercise group.
- Same as 2, but you have an own exercise group.
- The course is so small that there is only one exercise group. You are holding this group and are in charge of the organization.
Thank you very much!