There are two types of users in BigBlueButton: viewer and moderator.
A viewer (typically the student) can chat, send/receive audio and video, respond to polls, display an emoji (such as their raised hand), and participate in a breakout sessions.
A moderator (typically the instructor) can do everything a viewer can, plus more. A moderator can mute/unmute other viewers, lock down viewers (such as restrict them from using private chat), and make anyone the current presenter. There can be multiple moderators in a session.
The presenter can do the following:
We created two overview videos – one for the viewer and the other for the moderator – to show you how the above features work.