A requirement of Arizona's Migrant Teacher Institutes was the preparation of instructional resource units. Development of these units was a key element in the three-stage recommendations related to individualizing instruction in both reading and oral language. This book consists of two parts: "Room Organization: Realistic Learning Centers" and "Instructional Resource Units". Part I covers: what a learning center is; how to begin learning centers; suggested learning centers in the areas of language, math, science or health, art, music, and audio-media; and how to evaluate learning centers. Prepared by teachers and administrators who attended Migrant Summer Institutes since 1973, the six resource units are intended for the primary grades, K-3. Each unit consists of: goals, objectives, motivational activities, sub-topics, evaluation, and concluding activities. Unit topics are: self-awareness through the five senses; colors; fun with fairy tales; Arizona desert life; heritage--an awareness of peoples (American Indian, Mexican American, Black, and Anglo); primary economics; transportation; and safety. (NQ)