From the article it looks like not only did they not do anything to the teacher, but they even refused to have the kid transferred to another class next year so he wouldn't be with the same teacher again. That's plain absurd. If I'm the parents, I'd be dialing up my lawyer, surely that would make the school board reconsider its choices.
The 10 day suspension = the kid won't have that teacher again. That's what the administration is allowed to do pretty much immediately. Tenure doesn't guarantee the teacher gets to keep her job. It guarantees that there's an investigation, she's allowed to tell her side, etc. I haven't seen the video, but from the comments, I'd guess that it's almost a sure thing that she loses her job, though it's possible she's removed from teaching for a year, has to attend some sort of anger management classes, or whatever. Most likely, jobless very soon though.
What would the point be of moving the kid into a different classroom? He's in with the same group of students he's been with all year. There are/were only about 10 days of school left - it'll be a substitute.
And, without seeing the video, why would he have the same teacher next year, if A) that teacher is fired and B) he doesn't fail for the year and have to repeat the same grade?