When disapproving a post, teachers are given the option to provide feedback before it’s sent back to the student’s Drafts.
If you do not wish to provide feedback, simply click X to dismiss the box. The post will be marked as disapproved and sent to the student's Drafts.
To disapprove and provide feedback using the Activity Feed:
Tip: Click the Please don’t show this again checkbox to dismiss the feedback box for the remainder of that session.