Paul Andersen is a science teacher and a technology specialist in Montana, and has this great video on Metacognition. In this video he provides ten tips on increasing comprehension.
He also has an amazing number of other resources available on his website http://www.bozemanscience.com/ including science videos, other educational videos, and a journal. He recently presented a TEDx talk about how to use game design to improve student learning. Great resources and food for thought.
Via Beth Dichter