Here are the steps to reset your Moodle courses for a new trimester, semester, or year :
1. In each course, go to the Settings menu on the left-hand side of the course.
2. Click on Reset.
3. Check anything that you want removed from the course. Just don’t remove yourself!! 🙂
4. Click Reset Course.
5. There may be a time lapse before the Reset is effective. Please give it an hour or so before determining whether or not it worked.
6. DO NOT RESET until your students are done and all grades have been posted. 🙂
Alternately, you can ask your Moodle administrator or RESD/REMC/ISD contact to make a new copy of the course. That way, you have a record of the old assignments. Then, do the Reset on the course copy.