This led to further implications for teacher-training, because of the difficulties it creates with the teacher's expertise, specifically with how the teacher can sensibly put his or her expertise at die disposal of the learners. From this I moved on to consider die implications for materials. Most obvious here was die change from 'teaching' materials to 'learning' materials, leading to support for die notion of 'learners' guides' to language learning, and for 'ideas' and 'rationale' books for teachers.Throughout this latter section I was concerned to point out that I was describing a change already in progress, and attempting to reinforce it and perhaps accelerate it. Finally, I should return to my tide. I hope I have dealt with both the straight and die ironic interpretations of my original question. If I have not dealt with them satisfactorily, I hope at least I have raised questions that others will be prompted to pursue. The most important point for me is that materials should be related to die conception of die whole of language teaching and learning as die cooperative management of language learning. (Received October 1980)