The peer review function in CarmenCanvas is one way to create interaction among students, and with advance planning in the setup, may serve to lessen the grading burden a bit for instructors. While the instructor or TA would still have to assign grades for each assignment, you can assign a rubric to the peer review and let students have the “first pass” at grading each other’s submissions. Note that this works best for online only submissions. Canvas provides peer review tips, and the videos and links below should help you get started as well.
If the assignment in question is a writing assignment, I would also suggest consulting the Center for the Study and Teaching of Writing. They have great resources as part of their Writing Across the Curriculum program. I’ve found their resources to be amazingly helpful both in creating the instructions for an assignment, and in creating the rubrics.
Ohio State guides to peer review
Creating a peer review assignment