Describes the evaluation and revision of the O-level Nuffield chemistry student and teacher curriculum materials. Includes a discussion of the rationale for the evaluation process and the methodology used. (JN)

Describes the development of the Nuffield chemistry curriculum materials by chemistry teachers and how these materials were received and used by a much larger and representative group of the profession. Includes comments on teaching Nuffield chemistry, the Nuffield examination, and on Nuffield chemistry outside of Great Britain. (JN)