Understanding frames of reference is critical in describing planetary motion and learning astronomy. Historically, the geocentric and heliocentric models were defended and advocated against each other. Today, there are still many people who do not understand the relationship between the two models. This topic is not adequately treated in astronomy…

This study explores the relationship between teacher knowledge and student learning in the area of mathematics by developing and evaluating an innovative approach to assessing teacher knowledge. This approach is based on teachers' analyses of classroom video clips. Teachers watched 13 video clips of classroom instruction and then provided written…

The integration of Information and Communications Technology (ICT) into subject teaching adds an extra layer of complexity for teacher educators. There are technical ICT skills to be taught and there are also many questions about how these skills relate to the development of subject knowledge and pedagogy. This article analyses the impact of the…

The introduction of technology education in primary and secondary schools during the past 10-15 years around the world has presented a number of difficulties for teachers, primarily related to their coming to understand the phenomenon of technology and to conceptualise the technology learning area in line with national frameworks. This paper…