You can leave comments for any assignment that appears in the gradebook. This is helpful when communicating concerns or compliments on an assignment.
To leave a comment on an assignment, hover your mouse over the student's assignment grade that you wish to leave a comment for. A small word bubble icone will appear in the corner of the grade box. Click this icon to leave a comment.
Type in the comment in the comment box for the student to view.
Once done, click on the Post Comment button. Students will be notified via the Canvas messaging system as well as via e-mail if they have signed up for updates. The comment will also be visible on the student's view of their grades.