In my last blog, I covered a paper I published (1) about questions in class, covert retrieval, and cold calling. The conclusion from this paper, and the blog post covering it, is that inserting questions into a lecture, and encouraging students to covertly retrieve through cold calling, ought to improve learning from a lesson. If time does not permit writing out the answers (one form of overt retrieval), or doing so would disrupt the flow of a discussion, then students should still benefit from bringing the information to mind if they are encouraged to do so fully through cold calling. However, it is often quite difficult to …