Decorating a classroom can take much time and can be tedious. This system has worked wonders in more of a group-based positive reinforcement. If student meet the criteria, they are given a check. If they do not, they are given an X. Depending on the behavior of the class, teachers can decide the desired total of checks to get the semester-end prize. This poster comes in PUB format. Simply adjust the criteria for your class and save as PDF. The PDF can be printed at 140cm W x 100cm H. Print at yo