When you are listening to your teacher's instruction during a lesson, make it easy for the new ideas to get in by listening non-judgmentally. This means holding in abeyance your habit (EVERYONE'S habit) of deciding whether you agree or disagree with what is being said. Or, especially, of trying to fit new ideas into what you already know. What if there is a new possibility that has NOTHING to do with what you already know?
By the way, teachers, listening to your students in this way during their lessons will make you brilliant.
(Thanks to Ariel and Shya Kane for teaching me these concepts and providing some elegant language in which to express them.)