Using these historical documents, students make observations, generate questions, think analytically, and cite evidence to support their opinions and conclusions. Each pack contains 20 historical source documents including photos, maps, paintings, newspaper clippings, lithographs and letters in a mix of color, black-and-white and sepia finishes. Printed on sturdy 8-1⁄2" x 11" card stock. Includes free 15-page online Teacher’s Guide.