Student lounge
Every user who purchases a Classroom has access to a Student Lounge of that Class. In this section, you can download files from the host that are restricted to only those who have purchased the item. You can also upload you own items, which could be homework assigned by the teacher. There is also a private commenting thread so class users can communicate amongst each other between classes.
The Student Lounge can be accessed from the Classroom's profile page under the title of the Classroom and will stay active even if the Class has past it's ending date.