The Society for Historians of American Foreign Relations has a variety of resources available for teachers on its website, including syllabi, primary sources, and assignments.
Has links to some example course documents from universities and a high school in America and Australia. I'm always interested in checking out how other people organise their courses; I'm redoing our Modern History Program at the moment. I prefer the chronological rather than thematic approach, although it seems it's going out of fashion these days.