I would really like for you to check out this article. It is very informative. The key to teaching is to set the student up to be successful in their learning endeavors. Right? This article gives a framework, a scaffold, on which to base the task of teaching students to ask questions. It includes production, improvement and strategy in its process. Very good article and food for thought...are we helping our students on the road to success in questioning?
The possibilities are endless
http://www.hepg.org/hel/article/507Volume 27, Number 5