Objectives of the fourth unit of the first grade section of the Focus on Inner City Social Studies (FICSS) series (see SO 008 271) are to help the student develop an understanding of his needs and his economic environment. The many learning activities, focus on the economic system -- consumers, money, exchange of goods, use of resources, differences between wants and needs, profit, and employment. The unit is not meant to be taught in its entirety. Instead, it is a resource unit of a variety of learning activities from which teachers can draw some ideas and content for effective use in the classroom. One activity which incorporates many of the economic concepts is a student play about the local supermarket. The format includes an introductory section; source materials for teaching the unit; knowledge, skill, and learning objectives; the learning activities; and supplementary teacher and student resource materials. (Author/JR)