Mark J. Volkmann is Associate Professor of science education at the University of Missouri-Columbia. A former junior high and high school science teacher, Volkmann has collaborated with teachers and scientists on numerous projects in middle level science classrooms and in science teacher education. His science teaching ideas have appeared in Science and Children, The Science Teacher, and School Science and Mathematics, and his research on science teacher identity and teaching science through inquiry has been published in Science Education and the Journal of Research in Science Teaching.