psychology terms!!

1. Give an example of how an authoritarian, permissive, and authoritative teacher would handle the following situation: 16-year-old Alex has been acting out in class by criticizing the material you are covering in class, critiquing your teaching methods, and arguing with other students when they voice their opinion. As a result, you rarely done your lesson plans and other students have stopped contributing to classroom discussions.
2. Explain the ripple effect.
3. Explain one key to a successful classroom that has been supported by empirical research.
4. Are there any tech tools that can help with classroom management?