When reviewing tasks, it's useful to leave the students comments to help them. They can also use comments to ask questions or respond. Here's how to do it:
Step 1: Go to All Student Tasks
Step 2: Click the Task you are looking to review
Step 3: Scroll Down to the list of students this task was assigned to
Step 4: Click on "view progress" or "review", if they have sent it for review already.
Step 5: Scroll down to the comments box
Step 6: Here you can view any student comments, or leave your own and hit "comment".
Step 7: The student will see the comments under the message icon on their dashboard.
Step 8: The student can reply to your comments in the thread.