Bullying from teachers

Hello,
Is there such a thing as teachers bullying? I believe there is, not just students. The reason why I think that teachers can be bullying students is when they give a certain geture towards a child and makes him/her feel frightened, scared or even crying. And that's what happened with my daughter in school. She brought it to my attention, and I was not happy to hear about that. I told her that if anything like that happens again to let me know. I mean why would even a teacher should have to give gestures if the child feels uncomfortable with? And what are the schools willing to do toprotect the child from such feelings of being frightened or scared from the techer? Anyway, I want to discuss this with the teacher and the prinicipal. That's it for now.