The Teacher view consist of the exercise area on the right, and classroom controls on the left side of the screen
On the right hand side, you have the session exercises and student submissions. Any exercises or activities your students complete will end up here as submissions.
On the left hand side of the screen, you have access to Start live activity and Speak to all buttons.
The rest of the teacher’s features (like Live activities, Speak to Class, creating exercises are covered in other areas of this Help site.