[b]App Store[/b][br][url=https://itunes.apple.com/app/geogebra-augmented-reality/id1276964610]https://itunes.apple.com/app/geogebra-augmented-reality/id1276964610[/url][br][br][b]Google Play Store[br][/b][url=https://play.google.com/store/apps/details?id=org.geogebra.android.g3d]https://play.google.com/store/apps/details?id=org.geogebra.android.g3d[/url][b][br][br]Videos von Tim Brzezinski[/b][br][url=https://www.youtube.com/channel/UCAu9ifk2TygWFnj5O0z3TUQ/videos]https://www.youtube.com/channel/UCAu9ifk2TygWFnj5O0z3TUQ/videos[br][br][br][/url][b]Beispiel[/b][br][url=https://www.geogebra.org/m/vvAv2KGq]Wendelstreppe[/url][br]