1. Exercise tie shoelaces before 2) follow the teacher command 3. Hear the first time when the bell goes off hides below the table 4. Hear the second time when the bell goes off to leave the classroom, can take a thick book on his head. 5. Quick walk down the stairs and can not run, can't push, can't noisy. 6. Quiet fast in the playground waiting in line. 7. Head count, listening to the teacher's command.