Marilyn Duncan has been a teacher for over thirty years. Her work has been in the classroom with children and as a teacher developer. Marilyn has been the Trainer of Coordinators for The Learning Network� and has been involved in a large-scale district initiative in Colorado. A nationally known speaker and staff developer, Marilyn describes instructional dialogue as �an important part of a teacher development process that can and does lead to improving the learning achievement of all students.� Marilyn Duncan lives with her husband Peter in Wanaka, New Zealand.