I think all classrooms should have a recording device that we can be reviewed if a student reports unprofessional conduct in the classroom. It would also benefit teachers when there's a dispute regarding a classroom incident. We should be able to hear what is said in the classrooms.
A few teachers speak in a derogatory manner towards the children, then deny it.
Some teachers frequently yell at students, which is wrong and unprofessional. Some teachers shame students. I personally heard a Kindergarten teacher ask her students, when they were confused about what to do, "Did you all leave your brains home this morning?"
If you don't have proof, if only the children are witnesses, the teacher denies what they said or did, and in my experience, the principal sides with the teacher.
Our children are vulnerable, there needs to be some way of knowing what's going on in the classroom, or I should say, proving what goes on in the classroom.
To all you wonderful teachers who are offended, it's not about you. (It would be great if wonderful teachers were more personally secure.)
I'd like to ask any students reading this if there ever was an incident in the classroom that they wish they could have proved took place.