The best way to help prevent bad behavior is to:

Developing and communicating strict classroom policies is essential for establishing a structured learning environment. Clear expectations allow students to understand the boundaries of acceptable behavior and the consequences of misbehavior. When students know the rules and the rationale behind them, they are more likely to adhere to them, creating a positive atmosphere conducive to learning.

Effective classroom management is built on consistency and transparency. By laying down clear policies, instructors empower students to make better choices and foster a sense of responsibility. When issues arise, having established guidelines makes it easier to address them appropriately and fairly.

The other methods outlined are not effective for promoting good behavior. Flicking the lights on and off may gain attention temporarily, but it does not instill respect for classroom norms. Screaming fails to provide a constructive approach and can lead to a negative classroom climate, reducing students’ willingness to engage. Providing feedback in the presence of other students can potentially embarrass the individual, leading to resentment rather than fostering improvement. Therefore, having a clear set of policies is the most effective approach for preventing bad behavior in the classroom.