高等学校数学における比と比例 [in Japanese] Ratio and proportion in mathematics for upper secondary school [in Japanese]
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We take up some topics in textbooks: "Fundamentals of Mathematics", "Mathematics I" and "Mathematics A", and we try to distinguish the notion of "ratio" and "proportion" in mathematics for upper secondary school. From the view point of the ratio and the proportion, we have understanding of the fact keeping in close contact with Mathematics curricula among elementary, lower secondary and upper secondary schools. Moreover, we give a approch to "proportion" with the notion of equivalence relation.
- Bulletin of Miyagi University of Education
Bulletin of Miyagi University of Education 42, 63-71, 2007
Miyagi University of Education