Routine

Establishing routine is of paramount importance.

Routines facilitate teaching and learning. Routine is good for the teacher and good for the students. Well-practiced routines don't just make your life easier; they also save valuable classroom time. And what's most important, efficient routines make it easier for students to learn and achieve more.

That's not to say that teaching and learning can be routinized. Never! But procedures for going out, talking in class, changing places, lining up, getting your assistance, using the pencil sharpener, and passing out materials must be.
Starting lessons with copying the date, the weather, routines about homework, warm-ups and ending lessons with reviews/tickets to leave are also extremely important for everyone to be successful.

Routines differ from teacher to teacher and from class to class. Routines are an individual thing. You use what's best for you and your students. Their students know the procedure because they've been taught to follow it, and no time is wasted directing students on what to do.