That was actually the best difusion of a fight by a cac I've seen in a minute to be honest. It's just too bad that everyone around the teacher decided to call it a slam when really he just subdued her with a
yamaarachi – a technique that gives the perpetrator a very suitable degree of control on how much damage the victim will suffer. Thus you can see in that video how he protected her (and especially her head) for most of the fall.
The beauty of the yamaarachi is that it ends with the perpetrator on top of the victim who'll be unable to move from under (if the assailant's legs are spread especially, a detail you can see even olympic athletes do). So it's a technique perfect for subduing someone until they run out of anger/adrenaline to cause trouble.
...but then the other students jumped in like the teacher just almost killed the girl.

I fukking miss judo tho'
