This social studies curriculum guide for grade 10 in Manitoba, Canada, examines the characteristics of the physical and social environments of North America and analyzes the interrelationships among them. The primary focus is on Canada and the United States with a secondary focus on Central America. The study has been divided into the following units and themes: Unit I, "Overview of North America" (regionalization of North America); Unit II, "The Agricultural Interior"; Unit III, "The North" (resource development and management); Unit IV, "Western Cordillera" (impact of topography); Unit V, "Atlantic Canada and Appalachia" (regional economic differences); Unit VI, "The Industrial Heartland and the Megalopolis" (industrialization and urbanization); Unit VII, "The American South" (the changing culture and economy of the South); and Unit VIII, "Canadian, Continental, and World Issues," (Central American and Canadian issues with a continental or world scope). Each unit begins with an overview of its main theme. Major topics within each theme are then outlined. Objectives, teaching strategies, learning activities, and discussion questions are provided for each topic. The appendix contains excerpts from the social studies K-12 interim guide. (RM)