000 00294nam a2200133Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aJournal for Research in Mathematics Education
260 _aNCTM
_c1 Jan-30 Jun,2007
362 _a38-38
_b01-Mar
700 _aDr. Reston
942 _2ddc
_cJ
999 _c179679
_d179679