"Best Social Studies Resource PreK" by tharthttp://www.trailfire.com/thart/trails/62792thart/trails60PBS Teachers - Social Studies Civics: Community & Citizenshiphttp://www.trailfire.com/thart/marks/224153Best Social Studies Resource PreKthartTue, 24 Jun 2008 00:41:27 -0700trailfire:markId:224153