Mathematics for All

Mathematics for All

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A problem must first be seen as one which calls for a proportionality analysis before the Ruleof -Three is considered a viable approach to its solution. ... Aguiar , 1980; Lima, 1982) have shown with different contents that children adopt additive solutions to ratio problems at earlier stages ... rates varied between 30% and 46% for the direct proportions problems and were around 12% for inverse proportionsanbsp;...

Title:Mathematics for All
Publisher: - 1986

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