Peruski, L., Mishra, P., Rosaen, C., & Koehler, M.J. (2007). Boundary Crossings: An Activity Theoretical Analysis of Technology Diffusion in a Teacher Education Program. In R. Carlsen, K. McFerrin, J. Price, R. Weber, & D.A. Willis (Eds.), Proceedings of Society for Information Technology and Teacher Education International Conference 2007 (pp. 1647-1653). Chesapeake, VA: AACE.