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Peer reviewedBaroody, Arthur J. – Arithmetic Teacher, 1984
The informal subtraction strategies that children develop are discussed in detail, with the role of the counting-down strategy described. Problems and remedies for difficulties caused by counting backward and the double count are also presented. (MNS)
Descriptors: Cognitive Processes, Educational Research, Elementary Education, Elementary School Mathematics
Peer reviewedBaroody, Arthur J. – Journal for Research in Mathematics Education, 1984
A model of subtraction development and the computing difficulties and research issues suggested by the model are outlined. Demands of simultaneous processes, difficulties with informal subtraction, and the impact on the counting-up procedure are discussed. (MNS)
Descriptors: Cognitive Processes, Computation, Educational Research, Elementary Education
