00710nam a2200205Ia 450000100070000000500170000700800410002402000150006505000210008010000300010124500580013126000280018930000310021749000450024850400400029365000590033365100470039270000330043970000320047225347920160527190357.0040804s1999    vaudl  gdb      1 0 eng d  a087353464600aQA13b.P465 19991 aOrtiz Franco, Luis2Local10aChanging the Faces of MathematicscLuis Ortiz Franco.  aReston, VAbNCTMc1999.  aviii, 168 p.bill.c28 cm.0 aChanging the Faces of Mathematics2Local  aIncludes bibliographical references 0aMathematicsxStudy and teachingzUnited States.2Local 0aLatin American StudentsxEducation.2Local10aHernández, Norma G.2Local10aDe la Cruz, Yolanda.2Local