http://www.oercommons.org/browse/keyword/berlin-airlift daily 1 2000-01-01T12:00+00:00 http://www.oercommons.org/courses/truman-presidential-library-and-museum The 2008 Summer Teachers Conference focused on the year 1948. Lesson plans created by teachers attending the conference and powerpoint presentations delivered by speakers are presented on this site. Humanities Social Sciences 2007-10-19T08:55:00 Course Related Materials