1. Every class should have 100% attendance daily. It is the teacher's responsibility to call parents and make this happen.
2. Every child should have a hand up for every question. The right hand should be raised if they know the answer and the left one if they don't.
3. If a paper drops, everyone should be able to hear the paper hit the floor.
Above is a partial list of demands being put on the members of my old department. Don't laugh. People's jobs might very well depend on being able to fulfill those impossible requirements. It was so much easier when I began my career. Sure I worried about the kids with the guns, but I knew if they went off, everyone would hear them, even if the class was noisy.