000 00487nam a2200157 a 4500
005 20140412111235.0
008 001115s19uu xx 00 eng d
020 _a0-88336-807-2
050 _aTR(GS 510.7
_bIrw9 1984
100 _aIrwon, Stephanie
245 _aBreakthrough to math :
_bteacher's guide for level one /
_cStephanie Irwin.
260 _aSyracuse :
_bNew Reader's Press,
_c1984.
300 _a38 p. ; ill.
650 _aMathematics -- study and teaching
999 _c102400
_d102400