Having zero respect for authority is a threat. She would not listen to the teacher, the administrator or the officer.
What does this teach other students?
It shows that she has a long brilliant future in the Democrat Party. She will go far.
Well:
1. I think he deserved firing for throwing the girl. Maybe the knocking her and the desk over was just part of trying to snatch her out of the desk, but even that was sketchy. If he can not remove a child who was no threat from a classroom without knocking her in her desk to the ground and then throwing her a couple of feet, he needs a job he is more capable at, recently not a school resource officer.
2. This guy also has a history and the New Post wrote about it right away. That is another clue he needs a different career.
3. As to what the students learn, I hope it is that if the authorities do wrong you should just accept it and they will be punished. That is a good lesson or any teen to learn.
What does this teach other students?
Lots of good things. Non-violent civil disobedience is appropriate in some situations. Standing up for your rights is important. Everybody deserves a fair hearing, not just an arbitrary decision based on who's got more force on their side. We live, or certainly should be living in a nation of laws, not "do as I say or else."
It is always good to recall that the founders of our nation refused to listen to the colonial Governor, the British soldiers, and even the King himself.