To complete a peer review, students must review the discussion and leave a comment on the submission details page [1].
Students cannot view previously submitted comments by any other reviewers, including comments by TAs or other instructors.
You can also assign a rubric to the graded discussion. If the discussion includes a rubric [2], students must only complete the rubric to complete the peer review. However, you can choose to ask your students to also leave a comment in the comment sidebar. The rubric score is used for an assessment opinion only; you must review the graded discussion and assign the final grade.