This guide for pilot study groups deals with curriculum planning, the writing of materials, and evaluation methods. Included are principles to be followed in the construction of a biology syllabus for age groups 11-17, a scheme for unified science for pupils aged 11-13, criteria for selection of course content, and an example outline of content for a secondary school biology program. Guidelines are given for the writing of teacher's guides, for the selection of laboratory and field equipment, and for out-of-school activities for pupils. The general evaluation scheme includes assessment of teaching strategies and student interests. Recommendations are given for constructing achievement tests and for stating objectives. A list of objectives for science education in secondary schools is included as an appendix. (EB)