I used to teach and I can assure you I knew what was going on in the classroom at all times. This is simply not credible.
I'm going to have to side with you on this one. You can't tell me the teacher was completely unaware that something bad was happening in the classroom. If he was, that's gounds enough right there to give him his walking papers.
The kid throwing punches should spend at least a few months time in jail. I saw part of the video, and it was way over the top.
I agree! When I sub, I know what is going on, and the kids know it.