In this ground-breaking book the author analyzes the roles and functions of teachers as they use and construct curriculum materials. She presents a conceptual framework for interpreting different kinds of materials, for planning instructional settings based on these interpretations, and provides teachers with concepts and strategies that will enable them to use curriculum materials professionally and flexibly. The book addresses the need for more professional and creative use of curriculum materials, and heightened teacher involvement in the process. Implications of her proposed approach for teacher education and staff development are provided.