By reprimanding Heather, the teacher could address the unwanted behavior (disruptions) and enforce the desired behavior (waiting until others have finished before speaking). For Heather to achieve this goal, the teacher must be consistent and would preferably reprimand Heather gently, as research has shown that students respond better to silent reprimands. Reprimands should be immediate, positive and specific, identifying both unwanted and desired behaviors. It is also important that the teacher remains neutral and continually evaluates the strategy, while being firm and resolute. The group contingency can be useful for Heather who is quietly completing her independent work, because independent work time is the ideal time to use the group contingency. The teacher might say that anyone who does their work quietly might receive a reward. The goal is set for the whole class, but only those who remain silent receive the reward. Another possibility is that if Heather manages to model this behavior, the teacher can give her the chance to earn an extra 5 minutes of free time for her entire class by quietly working on her work. Rewards should be more than verbal