00449nam a22001337a 4500008004100000020001500041050002000056100002100076245010100097260003900198300001600237650003600253650002600289220608b        |||||||| |||| 00| 0 eng d  a089391245X  aQA11b.D38 1984  aDavis, Robert B.  aLearning Mathematics:bthe cognitive science approach to mathematics education cRobert B. Davis  aNew JerseybAblex Publishingc1984  aviii, 392p.  aMathematicsvstudy and teaching  aCognition in children