Created and updated by practicing educators, "Primary Source Learning" helps teachers use primary-source materials from the Library of Congress in their lessons. The site’s Teaching Materials database helps educators quickly find and use primary sources related to specific curriculum standards in all subject areas. The site also offers professional development activities to help teachers learn to use primary-source materials in their classes, and it connects K-12 schools, university programs, libraries, and museums through collaborative programs that aim to deepen students’ understanding of the curriculum and foster information-age literacy skills. Educators are encouraged to field-test the site’s "Learning Experiences" in the classroom and to share their own work by publishing it to the site, using a feature called "My Portfolio" to submit new learning experiences. Primary Source Learning was created by the Northern Virginia Partnership of An Adventure of the American Mind Program and made available through a Library of Congress grant funded by the U.S. Congress.