This publication contains classroom activities and fact sheets intended to teach intermediate and secondary level students about international understanding, cooperation, and peace. A background paper for teachers and a bibliography are also included. Following a very brief introduction in Part I, Part II contains teacher's notes and suggestions for classroom activities in four areas: conflict study and conflict solving; the arms race, disarmament, and development; peace; and our role in developing the future. Students are involved in many different kinds of activities. For example, they analyze a war film, read and discuss books, make wall posters presenting information about military expenditures and development, conduct research about the functions of the United Nations, and participate in simulations. Part III contains the background paper, fact sheets, and the bibliography. The paper discusses "Conflict Studies and Peace Education." Fact sheets are provided on various topics: military expenditures and arms, arms transfers, research and development, disarmament and development, and the United Nations and disarmament. A list of books, reports, posters, films, and other publications concerning disarmament is included. The appendices contain six masters for overhead projection transparencies. (Author/RM)