Teachers with training in gifted education are more likely to foster high-level thinking, allow for greater student expression, consider individual variance in their teaching, and understand how to provide high-end challenge. Appropriate staff development for middle level teachers will continually focus on high-quality curriculum, understanding and teaching in response to individual as well as group needs, and developing a repertoire of instructional strategies that support and manage flexible classrooms. Central to the success of these endeavors is shared responsibility for meeting the needs of each learner, evidenced in systematic and consistent planning, carrying out of plans, and evaluation of effectiveness of plans in terms of individual learners and small groups of learners as well as the class as a whole.