Sometime all it takes is a bite of bribery. I love to sub the kindergarteners because I have established a repore with the students. When I enter the class they ask if I have my tresure chest. They know that inorder to pick from it at the end of the day their behavior has to be good. I achieve two things, good behavior and their admiration. It goes a long way and even those children who have move on to 1st and 2nd still remember and act well in class. For the older kids I have earned their respect by being fair and consistant.