I teach an integrated full day preschool class. This year, my group is having a hard time following the rules in the pretend play center (kitchen, dress up, stuffed animals, etc). It is definitely the most popular center but they do not play appropriately. They make a huge mess, become overly silly, and become quite loud. I don't mind and am used to noise but it is far too loud for inside play. I've already limited the materials in the center, modeled correct behavior, and closed the center completely for the remainder of the day after poor behavior. I've taken the "choice" away from students. In other words I choose the center for them and they are not able to switch until a certain amount of time. We'll have a few good days but then back to the old behaviors. There doesn't seem to be even one student who plays calmly in that center. I have whole class behavior management set up that works for everything except this issue. I also choose a star student as individual incentive. Are there any suggestions on how to better manage this center?