How are teachers using primary sources to meet Common Core literacy standards in English/Language Arts, Social Studies, and Science?

The implementation of Common Core standards has affected the instructional strategies of many teachers. Among other things, the standards require active student engagement, learning along a progressive sequence of higher proficiency, and heavy use of informational texts, especially primary sources. This study evaluates the impact that Common Core literacy standards have had on the proven primary source-based strategies and practices of five teachers