Only recently retired I already quitted teaching in 2012 to be free to sing, to run, to travel and to explore the innovations on GG. I'm volunteering in maintaining an open dutch math site [url]http://wiskunde-interactief.be[/url] with thousands of GG. I am GeoGebra translator for Dutch (Belgium), regular teacher trainer, president of the Flemisch GeoGebra Institute [i]GeoGebra Vlaanderen[/i]: [url]https://www.facebook.com/GeoGebra-Vlaanderen-106036888566979[/url].