This document discusses using primary sources in social studies classrooms and provides examples of a case study and student project on westward expansion in the United States. It encourages analyzing historical events from multiple perspectives by using primary sources to develop a richer understanding. Examples of primary sources on westward expansion are presented, along with questions historians ask to critically analyze primary sources by considering their context, purpose, and potential biases. The document concludes by discussing multigenre writing projects that have students creatively synthesize and present what they have learned from multiple historical sources.