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Miyakawa, Takeshi; Winslow, Carl – Educational Studies in Mathematics, 2009
In this paper, we analyze and compare two didactical designs for introducing primary school pupils to proportional reasoning in the context of plane polygons. One of them is well-documented in the literature; the other one is based on our own data and is accordingly presented and discussed in more detail in this paper. The two designs come from…
Descriptors: Foreign Countries, Mathematics Instruction, Research and Development, Theory Practice Relationship
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Sayeki, Yutaka; And Others – Learning and Instruction, 1991
A method was developed using a deck of cards to teach Japanese fifth graders to calculate the area of a parallelogram. Investigations with 59 male and 45 female students demonstrate the superiority of the method to that previously used in terms of recall at one week. (SLD)
Descriptors: Area, Classroom Techniques, Cognitive Psychology, Computation