This document outlines an activity to teach students the difference between primary and secondary sources. It begins with objectives and a motivation activity called "Broken Telephone" to demonstrate how information can change over time. Students then do three tasks: 1) Match photos of different sources to their definitions, 2) Classify example sources as primary or secondary, and 3) Draw an example of each source type. The document concludes with rubrics for grading the assignment and a writing prompt about using reliable sources.