This social studies resource guide for grade 4 outlines one of four units on the theme Communities Around the World with emphasis on a comparative analysis of economic systems. Specific objectives for this unit on the Soviet Union are described in these areas: 1) economic, geographic, and sociological concepts; 2) understandings and generalizations; 3) skills; and, 4) attitudes. 59 learning activities are outlined in a format designed to help teachers see the relationships among objectives, content, teaching strategies, and materials of instruction. A list of educational media is also included. Pupil materials prepared for this unit are appended and include: maps, map worksheets, information summaries, graphs, study questions, and original stories on family and community life. A teachers guide for the total grade 4 course of study is SO 001 282. Other documents in this series of curriculum guides are SO 001 275 through SO 001 287. (Author/JSB)