Read this article on the website Good Design by Kate Canales of frog design, one of the leading design consultancies, about teaching Design Thinking to middle schoolers. Her experience should motivate you to try it yourself and her insight into what it might take to teach middle schoolers design is enlightening!
There is a great program that started at Northwestern University to apply the creative research-and-development skills of designers to realistic entrepreneurial projects in the healthcare, education, and environmental sectors.
Why Design Thinking is the next competitive advantage.
Roger Martin is not a designer. That is clear from reading the book. He is however very articulate in translating what designers do into a language that business people should not find hard to understand. Is it an accurate reflection of the designers mind, thinking and methodology. Partially, at best. Does that matter? Not at all! Martin does a fantastic job (better than I have seen any designer do!) of bridging the two worlds.