[b](Modified for HTML5 on 19 Nov 2013)[/b]
To help the students to tell the time from the clocks.
Chinese version: http://www.geogebratube.org/material/show/id/6074
Anthony Or. GeoGebra Institute of Hong Kong.
Tradotto in italiano e modificato dai lavori di Michael Borcherds, Anthony C.M. OR
[url=https://www.geogebra.org/m/mAGesaxF]Super Clock[/url]