As part of the second grade curriculum of introductory economics, this unit of the Focus on Inner City Social Studies (FICSS) series (See SO 008 271) explores housing and communities. The unit is an active study in which children explore and probe into community conditions. They experiment with methods of improving their own environment and develop self esteem in belonging to groups working to raise community standards. One activity urges students to call or write the health department to learn how to get rid of rats and pests and, then, to talk to adults to see what can be done to reduce health hazards that may exist in a neighborhood. The unit also explores why people live where they do; responsibilities of tenants and owners; and what effects urban renewal has on housing. The format of the unit includes an introduction, essential source materials for teaching the unit; knowledge, skill, and behavioral objectives; learning activities; and teacher and student resources. (Author/JR)