In many middle schools, poor student lunchtime behaviour is an ongoing problem. Such behaviour can have a detrimental effect on a school's climate and culture, which can in turn degrade the quality of learning that occurs in the classroom. As a result, improving students' lunchtime behaviour should be a priority for staff. One solution is to make social skills instruction part of a school-wide discipline program. In many schools, administrators, teachers, support workers, and parents seek to create such programs through Effective Behavior Support (EBS). EBS is a positive and proactive approach to discipline problems in schools. The concept seeks to apply positive behavioural interventions and systems to bring about socially important change. For instance, EBS schools might seek to improve student behaviour through environmental redesign, curriculum redesign, or the removal of rewards that inadvertently maintain problem behaviour. The most successful interventions reinforce the values of students, parents, and educators. (Contains 1 note.)