00626nam a2200193Ia 4500001000700000003000500007005001700012008004100029010001500070020002200085050002100107082001600128100003400144245007100178260008400249300001400333504004100347650004400388204819BIBL20160527193711.0900918s1990    vau      b    00010 eng    a 90049407   a0871201755c11.9500aQA11b.W563 199000a510/.7122010aWilloughby, Stephen S.2Local10aMathematics education for a changing worldcStephen S. Willoughby.0 aAlexandria, Va.bAssociation for Supervision and Curriculum Developmentcc1990.  av, 103 p.  aIncludes bibliographical references. 0aMathematicsxStudy and teaching.2Local