I am the chair of GeoGebra Institute of Prague. I currently hold the position of Assistant Professor at Charles University. I am interesting in classical and computational geometry and teaching geometry. I organize by the Faculty of Mathematics and Physics and Department of Mathematics Education GeoGebra courses which are intended for secondary school teachers. Geogebra Institute of Prague: [url]http://tube.geogebra.org/geogebra+institute+of+prague[/url]