These instructional guidelines contain information for school systems and teachers in Maryland to assist them in preparing to deliver instruction on Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) prevention to students. The instruction is appropriate to the age, intellectual development, maturity, and curiosity of the students. The goal of the guidelines is to help design instruction that educates students in a systematic and consistent manner about AIDS, its modes of transmission, prevention, and social ramifications. The guidelines, developed by the Interagency Committee on AIDS Education, were prepared for Maryland public school districts. A continuing theme in the material presented is the validity of instructing students that abstinence from sexual intercourse and intravenous drug use is the best method of AIDS prevention. Another major theme is the need for parent and community involvement in curriculum development and implementation because of the controversial nature of certain aspects of AIDS education. Five major sections make up the guide: curriculum development, instructional guidelines (organized by three grade ranges--grade 3-6, 6-9, and 9-12), school staff training, parent awareness, and resources. Each set of Instructional Guidelines is entitled "Unit on Communicable Diseases Including AIDS Prevention" contains: brief goals, subgoals, instructional expectancies and a list of recommended vocabulary on communicable diseases. A copy of Maryland Prevention Bylaw mandating that all school systems implement AIDS instruction, were developed by the Interagency Committee on AIDS Education. Public Law 100-202 which references particular issues surrounding AIDS prevention is included. (IAH)