Communities in the nation is the theme of this social science strand for Spanish-speaking third graders. Content sources in kits 29-32 are stories, games, interviews, visual aids, and the students' own experiences. Focus, objective, and materials for each learning and assessment activity are given in English and Spanish; detailed teacher instructions are in Spanish only. Activities focus on the elements, wants and needs, change occurrences, and results of change. Concepts dealt with are interdependence, cooperation, values, societal control, tradition, causality, power, conflict, differences, cultural change, and modification. Kits cover Spanish-speaking and other communities in the nation; similarities/differences in ethnic group values, customs, and interdependence; U.S. geography; occupations; use of natural resources; sources of income in communities; community problems/events, architectural differences; similarities of communities; comparison of four communities with given physical and economic environments--income sources, population density, power structures; effects on individual of environmental and technological factors; and influences of population mobility. (RS)