This curriculum guide introduces teachers and pupils to the results of a UNESCO sponsored project for developing international understanding through an experience centered curriculum approach. Using this approach students generalize from their personal experience to concepts about humans and societies. Fifteen teachers from eight countries developed the project for students between the ages of 11 and 18. The first section describes in general the experience situations, discussion techniques, and followup activities. The second section provides a set of guidelines for the teacher to apply the approach to specific subject areas such as biology, literature, writing, language, physical sciences, mathematics, and the arts. Section 3 discusses the teacher's role in reacting to the pupils' emotions. Section 4 examines the variations of approach according to age group and educational level. Section 5 describes the inservice teacher training for the project. Section 6 presents an evaluation of the project. Section 7 provides detailed procedures of 24 experience situations, class discussion ideas, followup projects, and applications to specific school subjects. Shorter summaries of 34 additional experience situations are also provided. The 58 total units include role playing situations, experiments in perception, communication and group behavior, questionnaire studies, action projects within the school and community, simulation and projective exercises, and fantasy scenarios. (DE)