CAE's December 2007 Teaching Strategy is an expanded astro ed research reading list.
For those of you who have not looked at the Center for Astronomy Education site this month, I recommend looking at their December teaching strategy. It's a good reading list of astronomy and physics education research articles. The education theory & practice book How People Learn is also on the list. The articles include Janelle Bailey's recent paper on a stars concept inventory, and the amazing review of astro ed research by Bailey & Slater. All of the articles are required reading. Reading between semesters is a good way to refresh yourself after the burnout that comes from teaching for fifteen weeks (I'm not the only one, right?). It's also a good way to get ideas for the next semester.