From PBS, "America Responds": A lesson that is cited and used by several other sites as well: http://www.pbs.org/americaresponds/educators.html
A digital archive of pictures of objects having to do with 9/11: http://americanhistory.si.edu/september11/
A second digital archive: http://911digitalarchive.org/
A podcast on the post-9/11 landscape: http://www.readwritethink.org/parent-afterschool-resources/podcast-episodes/post-landscape-30336.html
Teaching guides and webcasts: http://www.911memorial.org/teaching-guides-0
George Bush’s presidential address on 9/20/01: http://voicesofdemocracy.umd.edu/deliberative-topics/war-peace/george-w-bush-an-address-to-a-joint-session-of-congress-and-the-american-people-20-september-2001/
"War, Terrorism, and our Classrooms": http://www.rethinkingschools.org/special_reports/sept11/index.shtml
New York Times article...