The challenge of teaching new subject matter is a familiar one for most teachers. This paper investigates the content knowledge gains made by seven teachers as they learn to teach the topic of semiconductors through a process of self-study. "Semiconductors" is a new topic in the curriculum which looks at the sub-microscopic properties of…

This paper reports on a study which was designed to examine how CoRes (Content Representations) and PaP-eRs (Pedagogical and Professional-experience Repertoires) might impact the practice of science teachers by considering how they might value (or not) pedagogical content knowledge (PCK) as part of their professional knowledge. The paper is based…

The purpose of this study was to rethink the conceptualization of pedagogical content knowledge based on our descriptive research findings and to show how this new conceptualization helps us to understand teachers as professionals. This study was a multiple case study grounded in a social constructivist framework. Data were collected from multiple…