Lectures

are numerous in-depth studies of student learning processes but, let me confess it, I found these singularly unhelpful while nervously waiting to take the plunge. Consequently, my own advice is, frankly, downright earthyl Notwithstanding educational theorists (who are all-too- frequently arts men), I take it as axiomatic that the existing pattern of lectures, tutorials, practicals, etc., common throughout higher scientific education, will persist for some time to come. A special word of thanks is due to Pearline Daniels, not only for translating my scrawl into typescript, but for the many helpful noises made at appropriate times. Peter Hor- robin also made many helpful comments. My thanks go to him and, indeed, to all those colleagues who had their say. Alan J. Walton April 1970 Contents v PREFACE 1 1 What they expect 2 Course planning 5 13 3 Lecture writing 4 The world premiere 21 5 On stage 31 6 The blackboard 41 7 Screened 49 8 Demonstrations 61 9 Tutorials 73 10 Seminars, colloquia, symposia, and such-like 83 11 Conferences 90 12 Facing the music 98 Bibliography 104 to all those who provoked me into taking up my pen CHAPTER I What they expect Come this September it will be nine years since we forsook the world. Three years squandered on a B. Se., three years devoted to a Ph. D., and three years honoured with a Fellow- ship which is about to be terminated.