Broken Record Technique

The “broken record” technique is a simple yet effective classroom management technique you can use with students at any level.
All you have to do is assertively, yet calmly, repeat a message or a command that must be complied with by the student. For example, if a student leaves his or her seat without permission, simply say to the student “please return to your seat.” Repeat the same statement until the student returns to his or her seat. The student very likely may protest or even argue; just keep repeating your statement like a broken record. The chances are very high that the student will give in and return to his or her seat.
Often, the simplest behavior management strategy is the best.