''The teacher had private conversations with the students''. So what did the teacher actually do in the classroom? I feel this whole video is a waste of time. You didn't say what the procedures are in a school. When does bad behavior become enough to remove the student. Who, how when to contact someone else for help. Making sure the rules are known, tone of voice, separating students, seating plans, special needs testing / referral. When to retrain a student from causing harm to others or themselves. How to deal with constant bad behavior that is no necessarily aggressive. What to do when the school ignores the situation. How to speak with parents about it.