Dr Martin Monk has spent thirty years in front of classes of one form or another. During that time he has worked as a secondary science teacher and on pre-service and in-service training, both in the UK and overseas. His current interests are in how the diversity of teaching practices is related to the socio-economic and physical constraints in which science teachers work. Dr Jonathan Osborne has worked in science education for the past 25 years, first as a teacher, then a local authority advisor and now as a senior lecturer in science education at King's College London. He has conducted e...