e-Learning - Collaborate
The best way is to allow your students to join a session as moderators or presenters. As moderators they have the same privileges as you do while as presenters, they are limited to sharing content. You can do this in two ways:
1. Join the session with your students and promote them to the desired role.
2. Let the students use the room without you. Schedule a session that allows all guests to join as moderators or presenters.
Role in Bb Collaborate: https://help.blackboard.com/zh-hans/Collaborate/Ultra/Participant/Get_Started/Attendees
More on promoting attendees: https://help.blackboard.com/Collaborate/Ultra/Moderator/050_Manage_Participants
More on scheduling a session: https://help.blackboard.com/Collaborate/Ultra/Moderator/020_Schedule_a_Meeting