A 2-phase project in which fifth grade students create their own country is described. The project offers a strategy for teaching a comprehensive, interdisciplinary unit on economics. In the first phase, students and teacher create an imaginary country. Separate sections outline the teaching procedure involved in this phase: locating the country; choosing a political and economic system; determining the country's natural, human, and capital resources; means of production; trade and interdependence; transportation; and the family as an economic unit. For each section, teaching strategies, content and skill objectives, discussion questions, and resources are discussed. A separate section details the project's culminating activity, in which students use the procedure followed as a class to create their own individual countries. An international fair displaying each student's country is described. Also included are evaluation information and a bibliography. (LP)