GeoGebraBook: 三下_三角形(教師版)、三下_三角形(學生版)
工作紙(pdf 檔,Word 檔)
題 3(a) http://www.geogebratube.org/material/show/id/95007 (Download GeoGebra file)
題 3(b) http://www.geogebratube.org/material/show/id/95013 (Download GeoGebra file)
題 3(c) http://www.geogebratube.org/material/show/id/95015 (Download GeoGebra file)
題 3(d) http://www.geogebratube.org/material/show/id/95031 (Download GeoGebra file)