The instructor or teaching assistant should use the Assignments category to allow students to easily find the assignments on the home page. Posts assigned to Homework or Assignment will also appear underneath the Assignments tab on the home page.
Assignments as a parent category is also magical because any categories within it will display their posts in streamlined fashion. Categories within Assignments are understood to be student work, uploaded to fulfill an assignment.
In the case of this post, this is an assignment, and it fits within the Magic categories unit within the semester.