Developed by professional educational staff, the curriculum of developmentally sequenced objectives for preschoolers (SOP) is designed for use in infant stimulation programs, for preschool training for all levels of retardation, with severely and profoundly retarded school age children, and for trainable and educable children during the earlier portion of school age range. A brief introduction covers the purposes of SOP; SOP's advantages; initial evaluation, basal and ceiling levels, and recording responses; selecting objectives; reporting and recording progress; and reevaluation. Objectives are listed in evaluation table form for the following areas: fine and perceptual motor, communications (prelanguage abilities, receptive language abilities, and expressive language abilities), gross motor, self help, and social (eating skills and miscellaneous social skills). Bibliographies follow each major section. (SBH)