One of the most important and difficult challenges facing social studies educators, particularly world history teachers, concerns the role of Islam--one of the world's fastest growing and most dynamic religions--in historical and contemporary domestic and international affairs. What teachers choose to teach about Islam and how they present it are critically important in fostering positive group relationships, producing competent citizens, improving America's relationship with the Islamic world, and protecting the civil and political rights of all students. This article is intended to help high school (and possibly middle school) social studies teachers develop lessons about Islam for world history and other courses. The author briefly reviews some common political and educational controversies over teaching about Islam, the major beliefs and practices of Islam, and the contributions of Islamic civilization to world history. Special attention is drawn to the importance of accurate, thoughtful instruction in helping secondary school students dispel some of the most insidious myths and stereotypes that haunt the world's Muslims.