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Peer reviewedDenvir, B.; Brown, M. – Educational Studies in Mathematics, 1986
Three studies on the development of number concepts (counting, addition, subtraction, and place value) in seven- to nine-year-olds considered low attainers in mathematics were conducted. The search for a descriptive framework, the development of a diagnostic assessment instrument, and a longitudinal study are reported. (MNS)
Descriptors: Addition, Cognitive Processes, Diagnostic Teaching, Educational Research
