This volume is intended for use by biology teachers in universities, teacher-training institutions, and secondary schools. It provides a means of international exchange of information on modern content, approaches, curricula, and techniques in the teaching of the biological sciences. Articles included in this volume are listed under three major headings: General Studies, Adaptation to Local Conditions, and Sources of Information. The editors have attempted to include material from as many countries as possible. Each article included in this annual publication appears in English, French, and Spanish. (BC)