Recently, there has been a movement to put religion and its influence on history back into the social studies curriculum. This ERIC Digest discusses: (1) reasons for including religion in the curriculum; (2) how religion is currently treated in the school curriculum; (3) guidelines for teaching religion in the classroom; and (4) resources available to implement in the curriculum. Religion is an active force in today's world, and for students to understand U.S. history and culture and the schisms in Ireland, the Middle East, and Afghanistan, for example, a thorough comprehension of religion is necessary. Citing the Supreme Court decisions written on Engle v. Vitale (1962) and Abington v. Schempp (1963) to support religion as an integral part of the curriculum, teachers, administrators, and schoolboards are cited as barriers in their efforts to avoid controversy within the community. However, if guidelines are established, teaching religion can be included in the curriculum without public outcry. Some guidelines include the study of religion without practicing, imposing viewpoints, or converting to any particular religion and the infusion of accepted methods and materials while providing a balanced understanding of culture, society, and religion. Resources are available to aid teachers in teaching about religion while staying with the U.S. Supreme Court guidelines. An 11-item reference and ERIC resource list is included. (DJC)