Parents can sign up as an observer in Canvas. Observers can link their Canvas account to their student's account so they can see assignment dues dates, announcements, and other course content. Observers can view the course content but cannot participate in the course.

How to sign up as an observer on Canvas: https://community.canvaslms.com/t5/tkb/articleprintpage/tkb-id/observer/article-id/4

How to generate an observer access code: https://community.canvaslms.com/t5/tkb/articleprintpage/tkb-id/student/article-id/150