A simple pedagogical activity about angle for primary school. You need to have DrGeoII installed in your Squeakland, so you can open the project from your browser. Alternatively you can use DrGeoII packaged for your OS: http://wiki.laptop.org/go/DrGeo#I_don.27t_have_an_XO.2C_can_I_use_Dr._Geo_II... Then you drag and drop the activity project file into it. Does it sound clear?
Hilaire