It can be really hard teaching in an inner city high school. I wonder how big and strong this teacher was, a male or a female. My husband, 6 foot, unarmed combat teacher in the military taught high school in that kind of setting. Really physically exhausting, mentally exhausting, but the fact that he was a college wrestler sparing partner to an Olympic Heavyweight contender meant he could throw a hammerlock on an unruly student and frog march them down to the principals office if need be. On a related subject and comment below, imagine if this teacher had a hand gun and the delinquents in class were able to take it away from the teacher. Something to think about as suggestions are made.
At a certain age a classroom full of kids could become a violent mob. The teacher would have to run for his life. There’s no mention here if the girl got medical attention or if the police were called (unless I missed it) . The police should have been called.
And what happens during the 15 min that the teacher is OUT of the classroom, frogmarching, if that's what happens while he is still IN there?!?