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Direct linkNasution, Andrea Arifsyah; Lukito, Agung – Journal of Science and Mathematics Education in Southeast Asia, 2015
In teaching proportion, the teachers usually give the students a formal formula, such as cross-multiplication, without providing them the meaning of proportionality. Thus, the students just apply it in order to solve proportional problems. However, it does not connote that they understand what proportionality means. In this paper, the authors…
Descriptors: Teaching Methods, Mathematics Instruction, Thinking Skills, Heuristics
