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Direct linkDowker, Ann – Cognitive Development, 2009
339 children aged 6 and 7 at Oxford primary schools took part in a study of arithmetic. 204 of the children had been selected by their teachers as having mathematical difficulties and the other 135 children were unselected. They were assigned to an Addition Performance Level on the basis of a calculation pretest, and then given Dowker's (1998)…
Descriptors: Computation, Arithmetic, Teaching Methods, Mathematics Skills
Dowker, Ann – Developmental Science, 2008
This study investigated "individual differences" in different aspects of early number concepts in preschoolers. Eighty 4-year-olds from Oxford nursery classes took part. They were tested on accuracy of counting sets of objects; the cardinal word principle; the order irrelevance principle; and predicting the results of repeated addition…
Descriptors: Individual Differences, Number Concepts, Subtraction, Preschool Children
Kaufmann, Liane; Delazer, Margarete; Pohl, Renate; Semenza, Carlo; Dowker, Ann – Educational Research and Evaluation, 2005
The present study compared the relative effects of 2 educational programs on kindergarten children. The experimental group took part in a numeracy-specific program, which focused on conceptual knowledge. Children were taught basic numerical skills such as understanding and handling numbers and their relations as well as counting principles. The…
Descriptors: Numeracy, Arithmetic, Kindergarten, Computation
Peer reviewedDowker, Ann – Mathematical Cognition, 1997
Assesses the competence of children (N=215) between the ages of 5 and 9 at addition by asking them to estimate the answers to addition sums. Reports that children at higher levels tend to produce more reasonable estimates than children at lower levels. Discusses the existence and nature of a zone of partial knowledge and understanding. Contains 31…
Descriptors: Addition, Arithmetic, Computation, Elementary Education
Peer reviewedDowker, Ann – Journal for Research in Mathematics Education, 1992
Described are the strategies of 44 academic mathematicians on a set of computational estimation problems involving elementary multiplication and division. Discussion centers on the theoretical implications evident from pretest/posttest results in terms of the variety of strategies used and how the choice of strategy changed across the two tests.…
Descriptors: Arithmetic, Behavior Change, Computation, Division
Dowker, Ann – Psychology Press, Taylor & Francis Group, 2005
Standards in numeracy are a constant concern to educational policy-makers. However, why are differences in arithmetical performance so marked? In "Individual Differences in Arithmetic", Ann Dowker seeks to provide a better understanding of why these differences in ability exist, encouraging a more informed approach to tackling numeracy…
Descriptors: Numeracy, Individual Differences, Cognitive Psychology, Arithmetic
