A guide to teaching a course on the history of the nations of the Western Hemisphere is presented. The Western Hemisphere is one of the regions offered in the International Baccalaureate examination category of history; the International Baccalaureate is offered by the United Nations International School. The guide is divided into five sections: (1) general introduction; (2) an approach to the course; (3) basic texts; (4) suggestions for units; and (5) additional materials for teachers and students. High school history and social studies teachers might benefit from the guide's suggestions for units and recommendation of basic texts in this subject area. (DB)