I will be teaching a Pre-School class with 3 1/2 year olds. The other teacher in the class wants to have a disciplinary chart that moves kids to different colors on the chart based on behavior. The three behaviors being GREAT DAY, GOOD DAY, AND SO, SO DAY. I am in charge of creating a chart that depicts these behaviors. My question is to those who have experience working with this age group, Is this a good thing to do. Has anyone had experience with charts such as this, and have they been successful or a disaster for the children? Any ideas?