Macrophone

Clever title. I approve.

It was interesting that your teacher can be heard so much more clearly than the student who asked her a question at 11 minutes. Understandably, they were facing different directions and your teacher is projecting her voice, but it was still surprising that the mic picked up such a high difference in volume.

I think its interesting that it picked up your conversation with your neighbor and the teacher's voice at very similar volumes, even though she was farther away from the microphone than you were. This could be because the microphone was facing towards her and away from you, and that she was speaking loudly in order to be heard by the whole class. Was the volume difference that small in real-time? Or was the microphone just that perceptive?

There were a lot of different layers in this sound that I found interesting. Besides the sound of your voice, your neighbors voice, and the teachers voice, the background had a lot of undistinguishable conversations going on. The noises of a door opening and closing and of the shuffling of papers earlier on the recording both stood out very clearly against the conversational sounds that we were becoming accustomed to. I wonder if those other sounds would have stood out as much if the conversations weren't something consistent that we were becoming used to hearings.

There is a clear distinction between the background and foreground sound in your recording.
It is very interesting that you did not hear the sound of paper and pen since you were paying attention to class at that time, and the sound of the paper and pen became very obvious. The raw sound we heard is very subjective, we chose to pay more attention to certain sound than the other. Like in this case, if you listen to the recording, the sound of papers and other noises are sometimes a lot louder than the teacher's voice, but when you were recording, you ignored other sounds and focused on the teacher's voice.