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Peer reviewedLin, Fou-Lai – Proceedings of the National Science Council, Republic of China, 1991
The errors and strategies made by students who consistently use the incorrect-addition strategy on "hard" ratio tasks were investigated. The characteristics of these "adders," such as awareness of noninteger multiples, the use of fractions and decimals, awareness of both within and between ratios, and distinguishing nonratio…
Descriptors: Addition, Decimal Fractions, Decision Making, Foreign Countries
