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Cakmakci, Gultekin; Leach, John; Donnelly, James – International Journal of Science Education, 2006
This cross-sectional study identifies key conceptual difficulties experienced by upper secondary school and pre-service chemistry teachers (N = 191) in the area of reaction rates. Students' ideas about reaction rates were elicited through a series of written tasks and individual interviews. In this paper, students' ideas related to reaction rate…
Descriptors: Chemistry, Curriculum Development, Mathematical Models, Models
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Kabapinar, Filiz; Leach, John; Scott, Phil – International Journal of Science Education, 2004
This paper reports upon a study addressing teaching and learning about solubility to Turkish first-year secondary school students (age 14-15). The principal aim of the research was to investigate the impact on students' understanding of solubility, of introducing a simple particle model of matter. A teaching intervention to fit within the existing…
Descriptors: Secondary School Students, Intervention, Chemistry, Foreign Countries