Joan M. Kenney s professional career has encompassed a wide variety of experiences in the field of mathematics. She has worked as a research scientist, specializing in operations analysis and risk management; taught mathematics at the secondary and college level; and performed task modeling and pedagogical intervention in elementary and middle school classrooms. Joan served as the national evaluator for the NSF-sponsored "Assessment Community of Teachers" and "Connecting with Mathematics" projects, the "Instructional Leadership Academy" sponsored by the Council for Basic Education, and the "Di...