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Learners’ level of understanding of the inclusion relations of quadrilaterals and prototype phenomenon. (English)
J. Math. Behav. 31, No. 1, 60-72 (2012).
Summary: This paper reports on data from investigations on learners’ understanding of inclusion relations of quadrilaterals, building on the ideas from our earlier study (Fujita \& Jones, 2007, see ME 2011b.00644 ). By synthesising past and current theories in the teaching of geometry (van Hiele’s model, figural concepts, prototype phenomenon, etc.), we propose a theoretical model and method to describe learners’ cognitive development of their understanding of inclusion relations of quadrilaterals, and in order to investigate the topic, data are collected from trainee teachers and lower secondary school students. The findings suggest that in general more than half of above average learners are likely to recognise quadrilaterals primarily by prototypical examples, even though they know the correct definition, and this causes them difficulty in understanding the inclusion relations of quadrilaterals.
Classification: C33 D23 G43
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