Brooklyn Historical Society has put together a very useful site for teaching primary sources. Here is a taste of what it is all about:
TeachArchives.org is an innovative resource for teachers,
administrators, librarians, archivists, and museum educators. It offers
sample exercises and informative articles based on a new approach to teaching in the archives.
TeachArchives.org is the result of Students and Faculty in the Archives
(SAFA), a three-year grant at Brooklyn Historical Society (BHS) which
partnered with 18 faculty at 3 colleges within walking distance of the
archives: Long Island University Brooklyn, New York City College of
Technology (City Tech), and Saint Francis College.
From 2011 to 2013, SAFA brought over 1,100 students to BHS to analyze
original documents. Independent evaluators have found that SAFA
students are more engaged and perform better than their peers in
non-SAFA classes. This site includes extensive SAFA project documentation.