Teaching medieval literature or history? Then you want this unit on the Crusades from High-5-Achievers. The unit introduces students to the causes of the Crusades and the effects of two hundred years of warfare that scorched the Middle East. Today, the West and the Middle East still live with the aftermath of this dreadful chapter in human history. The unit is not an exhaustive overview, but the 28-slide PowerPoint presentation will help students understand the motivations that drove men to slaughter one another mercilessly. The numerous slide notes will also assist the teacher in presenting this complex period of history. In addition to the PowerPoint, the unit also provides a vocabulary exercise, a review test and three suggested projects that students may complete alone or in pairs. Answer keys are also provided.