Despite the importance of evolution to understand biology, there is significant evidence that many biology teachers have difficulties to successfully teach this topic. The purpose of this study is to describe procedures by which a paper-and-pencil instrument to assess teachers' pedagogical content knowledge for evolution (PCK[subscript evo]) was…

Pedagogical content knowledge (PCK) has become a useful construct to examine science teacher learning. Yet, researchers conceptualize PCK development in different ways. The purpose of this longitudinal study was to use three analytic lenses to understand the development of three beginning biology teachers' PCK for teaching natural selection…

This paper reports a case study of four grade 10 physical sciences teachers' PCK about graphs of motion. We used three data collection strategies, namely teachers' written accounts, captured by the content representation (CoRe) tool, interviews and classroom observations. We conceptualised the PCK displayed in the CoRe tool and the interviews as…

In this paper, we present a professional development/upgrading programme in science for early-years teachers and investigate its impact on the teachers' competencies in relation to their knowledge and teaching of science. The basic idea of the programme was to motivate the teachers by making them members of an action research group aimed at…

This multiple case study investigated how two preservice chemistry teachers' pedagogical content knowledge (PCK) representations of behavior of gases progressed in the context of a semester-long chemistry teaching methods course. The change in the participants' PCK components was interpreted with respect to the theoretical PCK learning…

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…

This study explored preservice elementary teachers' and their mentors' understanding of the essential features of inquiry-based teaching through the use of evidence-based reflection. The web-based video analysis tool (VAT) system was used to support preservice teachers' and mentors' evidence-based reflection during field…

This paper reports findings from an ongoing study exploring how the Content Representation (CoRe) design can be used as a tool to help chemistry student teachers begin acquiring the professional knowledge required to become expert chemistry teachers. Phase 2 of the study, reported in this paper, investigated how collaboration with school-based…

This study tested a hypothesis that focused on whether or not teachers' pedagogical content knowledge (PCK) is a necessary body of knowledge for reformed science teaching. This study utilized a quantitative research method to investigate the correlation between a teacher's PCK level as measured by the PCK rubric (Park et al. 2008) and the degree…

Examines ways in which knowledge might be captured, articulated, and portrayed to others. Develops an approach to articulation and portrayal based on what is called the CoRe (Content Representation), which represents the particular content/topic of the science teaching, and PaP-eRs (Pedagogical and Professional experience Repertoire), which…

Reports on the use of a HyperCard-based tool by preservice teachers to create and modify concept maps about science- related subject matter. Data gathered from interviews, journals, and concept maps indicate that the concept-mapping tool was easy to use and allowed teachers to organize their cognitive frameworks into more powerful integrated…

Analyzes the ways in which some beginning primary school teachers cope when faced with teaching science. Examines aspects of a group of beginning primary teachers' science teaching practices in order to better understand the basis of their practice. Finds that activities that work have a close relationship with science Pedagogical Content…

Investigates student teachers' understanding of science and their ability to learn what was needed when it was required for teaching purposes. Findings indicate that half the students were able to prepare themselves adequately through independent research with guidance although their initial background knowledge of science was weak. Discusses…

Uses case studies to explore the pedagogical reasoning ability of second-year preservice primary teachers. Reports that the framework provided in a problem-based science education course enabled the teachers to refine their reasoning ability and to integrate their science knowledge, curriculum knowledge, and knowledge of learners. (Author/JRH)

This paper tests the utility of a new sociocognitive frame for analysing the development of teachers' knowledge--the knowledge integration perspective (Linn, Eylon, & Davis, in press; Linn & Hsi, 2000). In doing so, the paper describes one prospective elementary teacher's developing knowledge and highlights its complexity. The prospective teacher…