Tony Wagner's work is a great resource for encouraging innovation in students and educators. The book centers around the idea that play, passion, and purpose can drive educational structures to guide students toward more meaningful innovation. He suggests, through anecdotes of innovative people, that students should be given more time in unstructured play. They should be introduced to experiences that encourage them to find their passions. From there, young people can possibly determine their purpose. There are ideas for educators on how to incorporate these ideas in their practice. A great read!
book link: http://www.amazon.com/Creating-Innovators-Making-People-Change/dp/145161151X