Presented in this resource guide for teachers of mentally retarded children in grades 1 - 12 are objectives, suggested activities, and materials to be used in subject areas of arithmetic, language arts, social living, transportation, physical and mental health, safety, and use of leisure time. The objectives, suggested activities, and materials are usually organized sequentially according to the following levels: preacademic, primary, intermediate, prevocational, and vocational. The following are arithmetic skills specified for levels: facts and processes, money, time, and measurement at preacademic through intermediate levels; reading/writing numbers and measuring/counting skills at the prevocational level; and activities such as computing costs of utilities from utility bills at the vocational level. Skills focused on in language arts are speaking, listening, writing, visual discrimination, vocabulary, comprehension, and reading at preacademic through prevocational levels; and listening, spelling, and oral and written communication at the vocational level. The following are among activities offered in the other five subject areas: setting up a classroom bank with play deposit slips for learning how to save (preacademic and intermediate levels) in the area of social living and management of materials; developing a skit on bus manners (vocational level) in the area of transportation; playing a circle game (primary level) to learn physical and mental health; playing games with a miniature traffic light (preacademic level) to demonstrate safety; and assisting in a neighborhood service center (vocational level). (MC)