| Author(s) |
Callingham, Rosemary Anne
Watson, J
|
| Publication Date |
2004
|
| Abstract |
In this article, data from a study of the mental computation competence of students in grades 3 to 10 are presented. Students responded to mental computation items, presented orally, that included operations applied to fractions, decimals and percents. The data were analysed using Rasch modelling techniques, and a six-level hierarchy of part-whole computation was identified. This hierarchy is described in terms of the three different representations of part-whole reasoning – fraction, decimal, and percent – and is elaborated by a consideration of the likely cognitive demands of the items. Discussion includes reasons for the relative difficulties of the items, performance across grades and directions for future research.
|
| Citation |
Mathematics Education Research Journal, 16(2), p. 69-86
|
| ISSN |
2211-050X
1033-2170
|
| Link | |
| Language |
en
|
| Publisher |
Mathematics Education Research Group of Australasia (MERGA)
|
| Title |
A Developmental Scale of Mental Computation with Part-Whole Numbers
|
| Type of document |
Journal Article
|
| Entity Type |
Publication
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