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January 24, 2010 | History

Exact calculation and estimation in children in grades three to eight 1 edition

Exact calculation and estimation in children in grades three to eight
Ekta Khemani

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Exact calculation and estimation in children in grades three to eight
relations to working memory.

Published 2005 .
Written in English.

About the Book

The development of calculation and estimation skills and the contribution of cognitive competencies such as memory to these skills are not well understood. The present study compared double-digit estimation and calculation in 60 children from grades three to eight. Presentation format (horizontal vs. vertical) and complexity (carry vs. no-carry) were manipulated for both types of math problems. The relations of these math skills to verbal and visual spatial memory were examined. Calculation and estimation showed grade related changes, but children were slower and less accurate at estimation than calculation across grades. Complexity affected problem solving accuracy. In general, visual spatial working memory was related to estimation. For calculation, verbal working memory was related to vertical carry problems, and verbal short term memory was related to no carry problems. Results are discussed with reference to theories about the development of numerical skills and their relations to memory.

Edition Notes

Thesis (M.Sc.)--University of Toronto, 2005.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 44-01, page: 0229.

GERSTEIN MICROTEXT copy on microfiche (1 microfiche).

The Physical Object

54 leaves.
Number of pages

ID Numbers

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