Metacognition is a theory, which states that learners benefit by thoughtfully and reflectively considering the things they are learning and the ways in which they are learning them. A common phrase used by its advocates is "thinking about thinking." In classroom situations, metacognition could well involve "thinking aloud" with a partner, so that each participant gains insight to the processes that lead to intellectual conclusions. Carried to further levels, metacognition might involve reflective thinking by students about the value and/or the applicability of the things they are learning.
Learning to Learn. An intriguing site at the University of Toronto. I plan to get in touch with these people.