Choose the rules that the child needs to work on. Stick those rules onto the behavioural contract using velcro. The child chooses his reward and you stick a picture of the reward onto the behavioural contract. The child is told that if he follows his school rules all day or for a set period of time, then after that time he gets access to his reward for a set time. If he breaks any of the rules, then he doesn’t get access to the reward at that time.