The teacher needs to be suspended with no pay for a week for bullying a student.
Next offense should be fireable.
The only way I can see to stop this is to sue the school, AND the teacher as an individual. It would force many teachers to file personal bankruptcy, to protect their assets.
No room for a second offense, no tolerance policy, don't you know. Perhaps they need a little of their own medicine. My thoughts on bullies has always included punching back harder. It ends things rather quickly.
It's not like he (?) said a bad word; first day as TV newman...