The new world we live in pushes us to unavoidable changes. The dynamism it brings to society forces us to rethink our concepts and how we position ourselves in light of the ever growing challenges we have to face. In this scenario, the school and, more specifically, the teacher is being redefined. But what should be the role of this new teacher? Knowledge is not a priviledge of a few anymore. The access to information is universal. You don't need to have an encyclopedia, or thousands of books, to...