https://blackboard.duke.edu/help/groups.html
If you want to divide a large class into groups small enough to manage and collaborate on projects and papers, or you just want a private space separate from the rest of the class, you can via Blackboard Groups to set up groups and add your students to groups. Within a group, students have access to a private discussion board, chat tool and document exchange area.
To explore and discover additional Blackboard features, see the Blackboard support website. If you need a tutorial for the Blackboard group tool, request an office visit and we will come to you.