000 00462nam a22001577a 4500
003 OSt
005 20220207153228.0
008 220207b |||||||| |||| 00| 0 eng d
020 _a0805838228
040 _ckul
084 _2Colon Classification
100 _4Lesh, Richard and Doerr, Helen M
245 _aBeyond constructivism :
_cModels and modeling perspectives on mathematics problem solving, learning and teaching
300 _a597p.
942 _2ddc
_cBK
999 _c324233
_d324233