A school-based study of the learning and understanding of ratio/ proportionality by pupils of average mathematical ability at 10+, 12-13 and 15-16 /
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| 主要作者: | |
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| 格式: | Thesis 图书 |
| 语言: | English |
| 出版: |
1979
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| Item Description: | PPZ. |
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| 实物描述: | viii, 341 leaves : ill. ; 30cm |
| 参考书目: | Bibliography: leaves 336-341 |