00838nam a2200229 a 450000100060000000300080000600500170001400800410003102000220007203500190009404000270011304100080014008200220014824500820017026001000025230000580035250400660041065000340047665000480051070000260055870000240058470311BD-RjUL20211209082002.0170417s2005    enka     b    001 0 eng d  a1412911699 (pbk.)  a(BD-RjUL)70525  aDLCcDLCdBD-RjULbeng  aeng00a516223bDEV 200500aDeveloping thinking in geometry /cedited by Sue Johnston-Wilder, John Mason.  aLondon ;aThousand Oaks, CA :bOpen University in association with Paul Chapman Pub., /cc2005.  axii, 270 p. :bill. ;c25 cm. +e1 CD-ROM (4 3/4 in.)  aIncludes bibliographical references (p. [258]-260) and index. 0aGeometryxStudy and teaching. 0aSymmetry (Mathematics)xStudy and teaching.1 aJohnston-Wilder, Sue.1 aMason, John,d1944-