Running a Classroom.. Smoothly

If it hasn't been mentioned in one of the previous posts, let it be known that I believe classroom manager is one of the most difficult roles a teacher has to play.  The teachers ability to manage the behavior of the students could very well determine how much a student will learn over the course of the year.  If a teacher spends all their time chasing students around the classroom, this cuts into the precious instruction time.
Classroom management and motivation seem to work hand in hand.  A teacher must first define the expectations he/she has for class behavior or academic achievement.  Then the teacher must motivate the students to follow these expectations.
Mrs. Heaps has clearly stated that she expects her students to quickly and quietly find their desks right after lunch. She clearly states this everyday as the students come in from lunch.  This way there is absolutely no question as to what Mrs. Heaps expects.  She also motivates her students with table points.  Whichever of the three tables is able to get their assignments and pencils out first with their voices off earns a table point.  You would be amazed how quickly some of those kids are able to get everything out when given the proper motivation.
Mrs. Brown, on the other hand uses a "quiet" song everyday right before she leads her class out to the school bus.  Using a lyrical language reinforces the behaviors they already know are expected and it allows the students to interact in the instruction.  Also using music caters to the students who learn best through music (according to Gardener's theory). Direct instruction is also a very important tool in managing behavior.
Following through on discipline is also very important.  This is one area that I personally struggle with,however, it is important that teachers do because otherwise students may think that they can get away with many things that are not acceptable.