This book provides detailed up-to-date information about sexually transmitted diseases (STDs), including Acquired Immune Deficiency Syndrome (AIDS), chlamydia, herpes, syphilis, genital warts, and gonorrhea. Designed to help students make choices that eliminate or reduce the risk of contracting an STD, this module gives high school teachers six developmentally planned lessons, varied instructional strategies, creative activities, and a culturally sensitive approach to educating about STDs. The book: (1) discusses the symptoms and consequences of STDs; (2) promotes abstinence as the best preventive behavior for teens; (3) presents steps for reinforcing abstinent behaviors; (4) provides information on the correct use of condoms; and (5) offers sources for obtaining information, diagnosis, and treatment of STDs. (JD)