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- 9Mathematics--Study and teaching (Elementary)
- 3Conservation of substance (Psychology)
- 3Mathematical ability--Testing
- 2Arithmetic--Study and teaching (Primary)
- 2Mathematical ability
- 2Problem solving in children
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Author / Creator / Contributor
- 2Blackall, Bettina Mary.
- 2Hauk, Carol Marie.
- 1Anderson, Ann Gladys.
- 1Bana, John Peter.
- 1Cathcart, W. George.
- 1Cooper, Norma Colleen.
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