This lesson is for a 45 minute world history class for 9-12th graders. The lesson covers the causes of Desertification. The lesson includes a one page lesson plan description. The lesson is comprised of 6 primary and secondary source documents that can be used for a small group or whole class debate/discussion. Following the document analysis, there is a writing prompt that will prepare students for discussion. Also, the lesson includes 4 multiple choice questions.A well-designed lesson plan can