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Direct linkTorbeyns, Joke; De Smedt, Bert; Ghesquiere, Pol; Verschaffel, Lieven – Educational Studies in Mathematics, 2009
This study aimed at analysing traditionally taught children's acquisition and use of shortcut strategies in the number domain 20-100. One-hundred-ninety-five second, third, and fourth graders of different mathematical achievement levels participated in the study. They were administered two tasks, both consisting of a series of two-digit additions…
Descriptors: Grade 4, Mathematics Skills, Mathematics Achievement, Mathematics Instruction
