Presented is a teacher's guide for an elementary science unit designed for use with first grade students in the Trust Territory of Micronesia. Although there is a degree of similarity to the curriculum materials developed for the Science Curriculum Improvement Study, this Micronesian unit does not purport to be an adaptation or edition of the SCIS materials. Designed to be taught in the vernacular language, it is suggested that this unit follow a free play unit and that it be used for about one half of the school year. The rationale for the period of free play is that children can gain experiences in sharing as well as in acquiring science and mathematics information through the free play activities. Activities are designed for active student participation with the teacher acting as a guide. This unit involves the concepts of object, attribute, material, change, and evidence and the science processes of observing, communicating, discriminating, and describing. The guide contains information concerning objectives, teacher and student activities, rationale for these activities, needed materials, teaching suggestions (provided on a day by day basis), and questions to be posed in class discussions. (PEB)