Maz's confused virtuality

I've noticed too, in TV representations of university or even high school classrooms, the style of the teachers is somewhat military--sharp questions, sometimes barked out, the teacher very much in control of the room, pacing, demanding the students come up with good answers, dismissing wrong answers or uncertainty. Obviously, all that is more dramatic than other styles. But it's so commonly that way I wonder, is that what classrooms at uni or high school are like? Is it a common style in fact?