| 000 | 00434nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 211224s9999 xx 000 0 und d | ||
| 020 | _a9780309069953 | ||
| 082 | _a372.7 KIL | ||
| 245 | 0 | _aAdding it up : helping children learn mathematics | |
| 260 |
_aWashington, DC: _bNational Academies Press, _c2001 |
||
| 300 | _axvii, 454 p. : ill. ; 27 cm | ||
| 650 | _aMathematics--Study and teaching (Elementary) | ||
| 700 | _aFindell, Bradford | ||
| 999 |
_c10678 _d10678 |
||