The document discusses the changing role of teachers in innovative classrooms. It describes how the teacher's role has evolved from traditional instructing to include facilitating exploratory learning and guiding collaborative inquiry. Various metaphors are used to frame the teacher's role such as an ecological metaphor comparing teachers to keystone species. The document also outlines practical innovative teaching practices like flipping the classroom, integrating technology, and accessing open educational resources. Challenges to innovative teaching are discussed along with the need for support environments to help teachers adopt, adapt, test and share new learning designs.