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|a 510.71 882han
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1 |
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|a Fuson, Karen C.
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| 245 |
1 |
0 |
|a Research on whole number addition and subtraction
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| 300 |
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|a p. 243-276 :
|b gráfs., tbls., il.
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| 650 |
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4 |
|a APRENDIZAJE
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|a ENSEÑANZA
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|a MATEMATICAS
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|0 14980
|9 24181
|a Grouws, Douglas A.
|b 1§ edición
|d New York : Macmillan, 1992.
|o 00018463
|t Handbook of research on mathematics teaching and learning
|w (AR-LpoUNG)PT8381
|z 0873535324
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| 773 |
1 |
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|0 14980
|9 24182
|a Grouws, Douglas A.
|b 1§ edición
|d New York : Macmillan, 1992.
|o 00018464
|t Handbook of research on mathematics teaching and learning
|w (AR-LpoUNG)PT8381
|z 0873535324
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| 905 |
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|a 17741
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