inside the Bubble

I recently heard an idea that went something like this: there are 3 circles (or bubbles, for our purposes) that a performer has. One around themselves, the second with their accompanist, and the third bubble is them and the classroom or audience. This simple thought evokes a visual that could sum up my ideas of "bad teaching." In this situation the teacher is not connected with the students, but is obsessed with selfish reasons, making excuses, or are simply not in tune with the attitude of the room and what the students need. They are not listening hard enough, not connecting. They are literally "in a Bubble."