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Direct linkNunes, Terezinha; Bryant, Peter; Evans, Deborah; Bell, Daniel; Barros, Rossana – Educational Studies in Mathematics, 2012
The basis of this intervention study is a distinction between numerical calculus and relational calculus. The former refers to numerical calculations and the latter to the analysis of the quantitative relations in mathematical problems. The inverse relation between addition and subtraction is relevant to both kinds of calculus, but so far research…
Descriptors: Intervention, Word Problems (Mathematics), Calculus, Subtraction
Peer reviewedRobitaille, David F. – Educational Studies in Mathematics, 1990
Presented is a comparison of two major surveys of the teaching and learning of mathematics conducted by the International Association for the Evaluation of Educational Achievement. Surveys indicate that performance levels have declined in computational skills and increased in algebra. (Author/CW)
Descriptors: Algebra, Arithmetic, Calculus, Comparative Education
