The Groups tool is used to organize students into small groups in a D2L course site. Instructors can then restrict discussion topics, content modules, grade items or other parts of a course site to a specific group so that it is only visible to its members. In addition, instructors can create group assignment folders that allow all students within a group to see feedback given on files groups have submitted.
This could be caused by a couple of different issues. First, students might not be able to see a group discussion because they aren't enrolled in a group. View Adding Students to Groups for information.
Second, the issue might be related to not having the proper group settings in place on discussion topics. View Setting up Group Discussions for more information.
Yes. When groups are created in a course site, select "self-enrollment" as the enrollment type option. Then students will be able to visit the Groups area in the course site and select the group they want to enroll in. View Creating Discussions for more information.
Yes. Faculty will often need to add an extra group to a set of groups (which D2L refers to as a "category") if the course enrollment changes significantly. View Editing Groups for more information.
Yes, any page that features a list of students, like Grades, Assignments, and Classlist, can be filtered by groups. Find the "View By" dropdown menu and select Groups, then select Apply. The list will repopulate with options to view each individual group.