文档介绍：THENATUREANDORIGINSOFMATHEMATICALSKILLSADVANCESINPSYCHOLOGY91Editors:-HOLLANDAMSTERDAMLONDON*,Canada1992NORTH-HOLLANDAMSTERDAMLONDONNEWYORKTOKYONORTH-,1000AEAmsterdam,herlandsLibraryofCongressCataloging-in-.--(Advancesinpsychology;91)-444-89014-:Advancesinpsychology(herlands);'651--dC2092-17326CIPISBN:******@,storedinaretrievalsystemortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recordingorotherwise,withoutthepriorwrittenpermissionofthepublisher,.,Copyright&,1000AMAmsterdam,.-ThispublicationhasbeenregisteredwiththeCopyrightClearanceCenterInc.(CCC),Salem,,.,shouldbereferredtothecopyrightowner,..,negligenceorotherwise,orfromanyuseoroperationofanymethods,products,-:,MultiunitBase-TenBlocks,andWrittenMul