Canvas has a robust annotation tool called DocViewer that is part of SpeedGrader. DocViewer allows the instructor to review student submissions and annotate them using comments, multiple colors of highlighting, strikethrough, and free draw. Comments and annotations can be easily edited and deleted.
Learn how to annotate (text)
While you can use SpeedGrader for grading student submissions and for giving feedback, you don't have to. Speedgrader allows you to grade using rubrics, and will automatically update the Gradebook with grades given to individual students or groups. If you are not very familiar with SpeedGrader, a quick orientation might be useful (video | text)
Learn how to:
Learn more about SpeedGrader (text)
Go to the Faculty Canvas Course for tips on Communication, Connection, Feedback, and Engagement.