Results and Discussion As the implementation of the project progressed, I engaged in a reflective cycle of analysis and planning with the help of my critical friend and I began to see how areas of my professional knowledge, or PCK, were being enhanced. Furthermore, after analyzing the data with reference to the five components of PCK outlined by Magnusson, Krajcik, and Borko (1999), it was apparent that I had experienced growth in several areas of my pedagogical content knowledge and practice while using the JiTT strategy.