This multi-age integrated teaching unit on outer space was developed by 19 rural teachers (grades K-8) from 12 Gallatin County (Montana) districts to associate all school subjects with a common theme, promote teaching efficiency by focusing on more than one subject at the same time, and increase student excitement. Topics explored by each grade level are space travelers (grades K-1), the solar system (grade 2), the moon (grade 3), galaxies (grade 4), comets (grade 5), exploration in space (grade 6), astronomy (grade 7), and science fiction (grade 8). Core activities are outlined for each grade level in reading/language arts, mathematics, science, social studies, art, music, and physical education. The lesson plans consist of a general focus statement, specific behavioral objectives, designated classroom activities, lists of materials needed, and a teacher log section. Lists of vocabulary words are included in each unit with some coded to a key for word attack through structural analysis. Accompanying each unit is a list of available resources, both material and human. Evaluation worksheets to be utilized when assessing student performance on specific objectives are included. (NEC)