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| 005 | 20210219153310.0 | ||
| 008 | 991125n 000 0 u | ||
| 035 | _aUPN01000089973 | ||
| 100 | _aThompson, Patrick W. | ||
| 222 | _aJOURNAL FOR RESEARCH IN MATHEMATICS EDUCATION | ||
| 245 | _aNotations, conventions, and constraints : contributions to effective uses of concrete materials in elementary mathematics | ||
| 300 | _a123-147 | ||
| 362 | _a23, No. 2, 1992 | ||
| 505 | _aJunio 1992 | ||
| 653 | 0 | _aDESARROLLO COGNOSCITIVO | |
| 653 | 0 | _aEAC | |
| 653 | 0 | _aENSE\197ANZA MATEMATICA | |
| 653 | 0 | _aFRACCIONES DECIMALES | |
| 653 | 0 | _aMATERIALES MANIPULABLES | |
| 653 | 0 | _aNUMEROS ENTEROS | |
| 904 |
_aAC _b027784 |
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| 905 | _aArticulo | ||
| 999 |
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