While watching some math videos from Eddie Woo [0], I was surprised at how the students were behaving throughout his lessons. They were joking with each other, being loud etc. This was not how I experienced school. The teacher is talking and you are listening. You are to talk when the teacher asks you to, otherwise you get kicked out of the class.
Dunno why I wanted to post this but is that really how it is in USA highschool?