I am in a school where screaming at all students is the norm. I have a kindergarten assignment and students are humiliated and degraded in efforts to control their behavior. I was able to show some positive discipline techniques to the teacher the first week by modeling and the students had several teachers from their classes call or come into comment on what a great two days they had. However, at the end of the first week, the teacher took off and I had total control of the class. None of my usual stuff worked and there was total chaos.