I'm teacher in Institut Secretari Coloma of Barcelona (secundary school), and Chairman of Associació Catalana de GeoGebra (ACG), wich is the GI of Catalonia http://acgeogebra.cat/ Our Institute was born in 2008 from a group of teachers of different educational levels (from primary school to university) in Catalonia, very interested in the GeoGebra project. ACG, currently, has about 200 members and every February we celebrate our Conference.