00561nam a2200181   450000500170000000800040001702000150002104000090003605000220004510000210006724500970008826000510018530000260023650000360026265000370029870000220033571000220035720150520153849.0000  a0521270537  aUOEL  aLB1570b.H68 1981  aHowson, Geoffrey  aCurriculum Development in MathematicscGeoffrey, Howson Christine Keitel & Jeremy Kilpatrick  aLondon ;bCambridge University Press ,cc1981.  avii, 288 p. :bill. ;  aincludes bibliography and index  2Theory and practice of Education  aKeitel, Christine  aKilpatrick Jeremy