The role of teachers

"Teachers, more often than not, obstruct such learning of subject matters as goes on in school" - Illich, Deschooling Society, p. 49

How can we, as teachers, step out of the way more and let our students guide their own learning? How much should we step in and instruct? What is our role as teachers? To facilitate student-centered learning? To provide information and resources for student inquiry? How can we fit in to an authentic learning experience for our students?