Geo Gebra Conference 2009 Markus Hohenwarter Florida State

Geo. Gebra Conference 2009 Markus Hohenwarter Florida State University markus@geogebra. org

Geo. Gebra Overview n Short History of Geo. Gebra n Future Plans n Geo. Gebra Community n International Geo. Gebra Institute

Geo. Gebra Short History

Geo. Gebra Computer Algebra Systems Derive Mathematica

Geo. Gebra Dynamic Geometry Software

Geo. Gebra TI-92: DGS and CAS

Geo. Gebra = Geometry & Algebra 2001/02 Master’s Project Univ. Salzburg n Version 1. 0 April 2002 n Tool for Analytic Geometry: points, vectors, lines, conic sections n Nov 2002: European Academic Software Award n

Geo. Gebra Dynamic Worksheets n Version 2. 1 January 2004 n Interactive web pages

Geo. Gebra 2005: Geo. Gebra User Forum www. geogebra. org/forum

Geo. Gebra. Wiki – Free Materials www. geogebra. org/wiki

Geo. Gebra Interactive Dynamic Worksheets Quadratic test Vectors

Geo. Gebra Animations in Geo. Gebra 3. 2 B. Gabel, Deutschland

Geo. Gebra Spreadsheet in Geo. Gebra 3. 2

Geo. Gebra Regression Lines & Polynomials

Geo. Gebra Binomial Distribution

Geo. Gebra Future

Geo. Gebra Future Plans n Make it Easier, Easier! n Drag & Drop User Interface n Symbolic Algebra View (CAS) n 3 D Graphics n…

Geo. Gebra. CAS In cooperation with the Austrian Geo. Gebra Institute (AGI) with support of the Austrian Ministry of Education

Geo. Gebra 3 D Mathieu Blossier u. a. , University of Rouen, France

Geo. Gebra Community

Geo. Gebra Open Source > Freely Available free of charge for everyone in Schools and at Home n Online Collaboration n ¨ International Community ¨ User Forum – Users help Users ¨ Geo. Gebra. Wiki – Pool of Shared Materials n Expandable by using other Open Source Libraries

Geo. Gebra Millions Visitors on www. geogebra. org 4 3. 5 3 2. 5 2 1. 5 1 0. 5 0 2004 2005 2006 2007 2008 Up to 15. 000 Visitors / Day n Up to ½ Million Visitors / Month n

Geo. Gebra Behind the Scenes 5 Core Developers n 15 Contributors n 45 languages n 100 Translators n 190 countries n 8500 Learning Objects n

Geo. Gebra International Geo. Gebra Institute since 2008

Geo. Gebra International Geo. Gebra Institute n Goals of IGI (www. geogebra. org/igi) ¨ Teacher training and support ¨ Material and software development ¨ Research projects and collaboration n Local Geo. Gebra Institutes in Austria, Brazil, Denmark, Hungary, Norway, Poland, Portugal, Spain, Turkey, UK, USA n MSOR Connections special issue, Book “Model Centered Learning”, Geo. Gebra Conference

Geo. Gebra Thank you! n n Geo. Gebra www. geogebra. org International Geo. Gebra Institute www. geogebra. org/igi Slides of this talk www. geogebra. org/talks Markus Hohenwarter markus@geogebra. org