Improving student learning in mathematics and science the role of national standards in state policy /
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| 主要作者: | |
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| 格式: | 电子 电子书 |
| 语言: | 英语 |
| 出版: |
Washington, DC :
National Academy Press,
1997.
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| 丛编: | Compass series (Washington, D.C.)
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| 在线阅读: | An electronic book accessible through the World Wide Web; click to view |
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