GeoGebraBook: 六下_圓周(教師版)、六下_圓周(學生版)
應用題 1 http://www.geogebratube.org/material/show/id/83490 (Download GeoGebra file)
應用題 2 http://www.geogebratube.org/material/show/id/83492 (Download GeoGebra file)
應用題 3 http://www.geogebratube.org/material/show/id/80911 (Download GeoGebra file)