If you have graded an assignment, but would like for your student to resubmit it, you must clear the assignment grade first. To do this:
- Find the assignment post. Using the "Filter posts by" option can be a good way to do this.
- Click the "Turned In" button.
- Click on the student's name in the left panel.
- Click on the "pencil" icon in the top right corner, next to the grade
- Click the "Clear Grade" button that appears. The student will then be able to resubmit the assignment.