This curriculum guide encourages students to learn behaviors that will reduce the potential for HIV infection when confronted with choices at a later age. The curriculum is designed for integration within a comprehensive program of school health education (lessons on communicable disease, including HIV, can be integrated at the preschool through grade 3 levels with units on germs, diseases, body systems, healthy life style, good citizenship, and personal responsibility) and offers opportunities for students to practice sequential, age-appropriate decisionmaking skills. In addition to classroom lessons and the concomitant teacher resources and worksheets, the guide offers information for all school personnel as well as for classroom teachers; provides a historical perspective and other facts on HIV/AIDS; presents the rationale for HIV prevention education; discusses classroom strategies; and provides guidelines for ensuring appropriateness and efficacy for diverse student populations. Appendices include a glossary of terms targeted to educators, additional resourses on HIV/AIDS and other communicable diseases, Texas Department of Health information, legal guidelines dealing with HIV in the schools, a bibliography, and an audiovisuals list. (LL)