The quality of learning processes is mainly determined by the extent to which students' conceptions are addressed and thus conceptual change is triggered. Colour phenomena are a topic within initial instruction of optics which is challenging. A physically adequate concept of white light is crucial for being able to grasp the processes underlying…

This paper presents the results of the first survey conducted in Belgium about the interest in and knowledge of astronomy. Two samples were studied, the public at large (667 questionnaires) and students (2589 questionnaires), but the results are generally similar in both samples. We evaluated people's interest, main information source and…

Students' understanding regarding force and frictional force was probed by administering a force concept inventory (FCI) and a frictional force concept inventory (FFCI) which was followed by practical activities to investigate the application aspect of the concepts in real situations. Analysis of the two audio-video recorded interviews and…

Describes a teaching model aimed at promoting conceptual change concerning heat and temperature. The model is used with teachers (n=2) and students (n=92) to explore its use as a professional development tool as well as a teaching strategy. Results indicate that the teaching model is effective in changing students' ideas and the approach resulted…

Described are the results of interviews of students regarding the concepts of "forced" and "natural" motion. Aristolean-like beliefs have been found to persist in students even though these views differ from orthodox physics views. (KR)