This resource educates learners about the distinction between primary and secondary sources, crucial tools in historical research. Learners will engage with definitions of both types of sources, consisting of firsthand accounts like letters and diaries (primary) versus interpretations like textbooks and documentaries (secondary). It includes examples illustrating these differences, such as a Captain's log as a primary source and a History Channel special as a secondary source. Activities prompt learners to classify various examples and explain the significance of recognizing source types in conducting comprehensive historical research.