Mathematics for All
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 |
| Author | : | |
| Publisher | : | - 1986 |
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