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| 008 | 091006t xxu||||| |||| 00| 0 eng d | ||
| 100 | _aMargaret S. Smith | ||
| 245 |
_aOrchestrating discussions _cMagaret S. Smith |
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| 300 | _ap.549-556 | ||
| 362 | _a2009 | ||
| 440 |
_aMathematics teaching in the middle school . ramping up on fractions _n9 _v14 |
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_2lcc _cART |
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_c113781 _d113781 |
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