Through the work of the Schools Council and other national agencies, the difficulties of achieving effective curriculum change through centralized initiatives and directives have been well documented. At the same time the importance of teacher involvement in such activities, and the advantages of curriculum development over revolutionary innovation, have become plain. This knowledge and the understandings it has generated are important today, when unusually sweeping changes are being brought about in the school curriculum. The authors of this book draw together these ideas to assist people promoting curriculum changes, as well as those on the receiving end of such projects.