"Engaging Students with Primary Sources" - Smithsonian article - includes information about making use of things like photographs and oral histories as well as examining limitations and strengths of different types of sources.
Using Primary Sources Activity Pack - from PBS
DocsTeach - is the Online Tool for teaching with Primary sources from the National Archives. Locate documents, images and more by time period - you can browse or search
See these specific K-5 lesson ideas using primary sources.
Library of Congress Primary Source Sets - Everything from Abe Lincoln to Women's Suffragist Movement to the Wright Brothers - there is so much here to pull from!
Primary Source Activities for K-2 Classroom - Library of Congress
The National Archives collection of Primary Source documents with help for how to find information.
Also check out the Online Exhibits
Collections of primary sources for different events with sample questions.
Click the image or click here