This teacher's manual is one volume in a six volume curriculum for the secondary level, designed to provide a systematic, group-oriented approach to decision-making in areas crucial to adolescent development: sexuality and social relationships, drug (substance) use and abuse, work, juvenile law, and people and government. An introductory section lists the general goals of the curriculum, i.e, to provide factual information, to give students an opportunity to anticipate, practice, and reflect on decisions they face or will face about sexual behavior, and to legitimize student questions and concerns. Lesson format and suggested teaching strategies, e.g., role plays, collages, brainstorming, are also described in the introduction and suggestions for staff training, and parent and community involvement, and a list of audiovisual materials and references are provided. The 23 content lessons cover anatomy and puberty; changing relationships (decisions, parents, friendships, dating, sex roles, homosexuality); sexual activity (readiness, pregnancy, birth control, disease); and parenting and lifestyle. Each lesson lists goals, activities, needed materials, and references. Activities and materials include vocabulary lessons, confidential question boxes, worksheets, strategies for decision-making, homework, and lesson evaluations. A final student assessment and course evaluation complete the manual. (BL)