Designed for educable mentally handicapped children, these lessons on social attitudes stress sex education and also present broader coverage of information relevant to the development of social skills. The pre-primary unit, for ages 4 to 7, includes lessons on healthy body image, proper toilet habits, male and female roles, sequence of growth, respect for others, and good self-image. Social development, growth, differences in people, understanding negative feelings, and human reproduction are covered in the primary section, for ages 7 to 9. The intermediate section, for ages 9 to 13, treats embryo and fetal development, social and physical development, and emotional and physical aspects of sexual maturation. For the advanced section, intended for ages 14 and over, blocks are given on personality, heredity, environment, basic needs, and emotions; adults, authority, the peer group, dating, premarital sexual relations, venereal diseases, smoking, alcohol, drugs, and sexual deviants; and marriage and family living. The lessons are illustrated and contain lists of resource materials. The guide concludes with a 75-item bibliography, a list of four kinds of instructional aids, and a list of books, pamphlets, and periodicals for suggested reading. (LE)