As an eighteen year veteran of public education, I found the statement below rather painful to read:
"Different people, when presented with exactly the same information in exactly the same way, will learn different things. Most models of education and learning have almost no tolerance for this kind of thing. As a result, teaching tends to focus on eliminating the source of the problem: the student's imagination." (Ouch!).
We all learn more and faster when our imaginations, emotions, interests, fears, etc... are part of the learning. I am not a "gamer" by any stretch of the imagination, but do understand what the authors of this book are saying about teaching and learning in the 21st century.