Seeking Traces of Filters and Amplifiers as Pre-service Teachers Perform Their Pedagogical Content Knowledge

This study examined how filters and amplifiers affect pre-service science teachers’ pedagogical content knowledge (PCK) in a human environment unit. The redefined consensus model for PCK decision-making framework identifying personal extra-personal factors act as were selected theoretical frameworks. Two teachers participated the study. While pre-interviews used to determine participants’ before teaching, observations post-interviews reveal after influenced PCK. Data analyzed deductively examine including interactions among components way on Constant comparison analysis revealed five general assertions of shaped process when these enacted their First, number affecting instructional strategies was highest. Second, curriculum lowest. Third, effect idiosyncratic. Fourth, more (or less) map integrated; less more) amplifier filter Fifth, Implications are suggested considering effects