This booklet, drawing from research on intergroup relations, presents classroom teachers with those items which promise to be the most help to them. Research advances in intergroup relations are briefly discussed, while major portions of the booklet examine basic concepts in intragroup relations and intergroup concepts of particular significance to the school. Also included are discussions of the following: (1) ethnocentrism as part of group development; (2) the different types of intergroup relationships; (3) the restrictions of social controls; (4) the importance of group identity; (5) children's recognition of group differences and their degrees of prejudice, and; (6) the attitudes toward group differences which children learn. Finally, guidelines for schools to practice in intergroup education are presented. The importance of teacher objectivity is stressed and a number of school practices which may help to change basic discriminatory and other undesirable attitudes are recommended. Selected research and general references are included. (SES)