00493 a2200181 4500041000800000082001800008100002200026245004800048260003900096300002500135504002900160518001300189650001500202650001700217650002900234650002500263653002300288 aEng a136.72bP571p aPhillips, John L  aThe origins of intellect bPiaget's theory  aSanfrancisco bW.H. Freeman c1969 axviii, 149p. illus.  aBibliography: p. 133-144 a2068-1-7 aIntellect  aChild study  aEducational implication  aTecahing princeples  aPiaget, Jean, 1896