1. Allen, D. W., & Clark, R. (1967). Microteaching: Its rationale. The High School Journal, 51(2), 75–79.
2. Baxter, J. A., & Lederman, N. G. (1999). Assessment and content measurement of pedagogical content knowledge. In J. Gess-Newsome (Ed.), Examining pedagogical content knowledge: The construct and its implications for science education (pp. 147–162). Hingham, MA: Kluwer.
3. Brenner, M. E., Mayer, R. E., Moseley, B., Brar, T., Durán, R., Reed, B. S., et al. (1997). Learning by understanding: The role of multiple representations in learning algebra. American Educational Research Journal, 34(4), 663–689.
4. Carpenter, T. P., Fennema, E., & Franke, M. L. (1996). Cognitively guided instruction: A knowledge base for reform in primary mathematics. The Elementary School Journal, 97(1), 3–20.
5. Cobb, P., Wood, T., & Yackel, E. (1990). Classrooms as learning environments for teachers and researchers. In R. B. Davis, C. A. Maher, & N. Noddings (Eds.), Constructivist views on teaching and learning mathematics (Journal for Research in Mathematics Education Monograph No. 4, pp. 125–146). Reston, VA: NCTM.