...in what is expected in your class.
Procedures, routine, and expectations are so important at the beginning of every year. I know you invest countless hours of teaching time telling students about these things, but you can make your job a little easier. Let your current students teach next year's students a few things. Use this End-of-the-Year Advice Book, and each student can compile their thoughts and suggestions in one place. Distribute them to next year's students however you choose. Your students will love being the experts, and you will have plenty to reflect on too.