In addition, a camera is mounted on the screen in the front of the room that points at the class. This allows a guest speaker to see the entire class.
This is where Tewksbury can stand and face the students in the class and also see the remote students via Zoom. Look closely and you can see the professor on the screen!
This camera points toward the blackboard so that all students — both in-person and remote — can see everything Tewksbury writes on the board.
The area inside the yellow and black tape is a “no-go” area for students, so that Tewksbury is always 6' away from them and vice versa.