zhang et al NARST (2008, March)

Zhang, M., Lundeberg, M. A., McConnell, T. J., Koehler, M. J., & Eberhardt, J., (2008, March). Conditions for collaborative knowledge construction of inservice science teachers in problem-based professional development. Paper presented at the Annual Meeting of National Association for Research in Science Teaching, Baltimore, MD, March 30-July 2, 2008.