Teachers who think their role is to tell the students what they need to know are going to absolutely hate this method. Especially those who feel threatened by anything which calls their teacher centred methods into question will not be able to adapt to this method at all. If you don't like taking risks or learning along with your students then this is not the method for you. Students who have learned to shut up, only answer questions, and generally sit back and let the teacher do all the work are not going to like this method because they have no chance to hide. So expect some resistance. However, the results are amazing if you have the right attitude.
