A more theoretical approach to effective schools research is needed, and a political systems model is an appropriate starting-point since it directs attention to power issues, which are critical to school improvement. The model suggests that both internal and external influences on schools are important. There are four main classes of external influence: administrative; professional; societal; and familial. Each has the potential for strengthening or weakening school effectiveness. Studies of family influence on student learning and attitudes emphasize the potential of collaborative arrangements in which families and schools work together.

We argue that classroom and school improvement cannot be attained without changing the relationships between the three central figures - teacher, student, and parent; this triad model is an 'inside out' version of school improvement, in which classroom and school improvement occurs as fundamental relationships between the triad members become more collaborative.

Our web metaphor suggests that those interested in research on effective schools should be sensitive to the impact of external influences; and that effective schools link participants together into a collaborative and responsive mutual influence system, the integrated school environment, the school level version of a political systems model, in which all gain.