Report of the First International GeoGebra Conference 2009 July 14 and 15, 2009 at the RISC in Hagenberg near Linz, Austria Abstract The principal aim of the First International GeoGebra Conference 2009 was to discuss the direction and vision the GeoGebra community should take in the future. On July 14th and 15th, 2009, a group of 114 people from 35 countries met for the First International GeoGebra Conference in Hagenberg, Austria at the RISC institute of the Johannes Kepler University Linz. During these two days researchers, developers, and teachers discussed and shared their experiences and ideas concerning GeoGebra in five working groups: Software Development and Online Systems; Teaching Experiences in Primary and Secondary Schools; Creation of Instructional Materials; GeoGebra at Universities and in Teacher Education; GeoGebra Institutes and Research. This report summarizes the GeoGebra related experiences of the conference participants as well as outcomes of the working group discussions and future plans for the development of GeoGebra and its user community. Authors Irene Chrysanthou, [email protected], Primary School Teacher (Cyprus) Judith Hohenwarter, [email protected], International GeoGebra Institute (Austria) Markus Hohenwarter, [email protected], Johannes Kepler University Linz (Austria) Freyja Hreinsdóttir, [email protected], University of Iceland (Iceland) Yves Kreis, [email protected], University of Luxembourg (Luxembourg) Zsolt Lavicza, [email protected], University of Cambridge (UK) Andreas Lindner, andreas.lindner@ph‐noe.ac.at, Austrian GeoGebra Institute (Austria) Susan Papp‐Varga, [email protected], Eötvös Lorand University (Hungary) Alison Parish, [email protected], Warwick University (UK) Tomas Recio, [email protected], University of Cantabria (Spain) Anders Sanne, [email protected], Norwegian University for Science and Technology (Norway) Evelyn Stepancik, [email protected], PH Niederösterreich (Austria) Katarzyna Winkowska‐Nowak, [email protected], University of Warsaw (Poland) March 8, 2010 1 Contents 1 Conference Program ....................................................................................................................... 3 2 Report of Working Group AB: Software Development and Online Systems ................................. 3 2.1 Abstract ................................................................................................................................... 3 2.2 Participants ............................................................................................................................. 3 2.3 Discussion Overview ............................................................................................................... 4 2.4 Software Development Projects ............................................................................................. 5 2.5 Online Systems Projects .......................................................................................................... 6 2.6 Developer Community ............................................................................................................ 7 2.7 Conclusion ............................................................................................................................... 7 3 Report of Working Group C: Teaching Experiences in Primary and Secondary Schools ............... 8 3.1 Abstract ................................................................................................................................... 8 3.2 Participants ............................................................................................................................. 8 3.3 Presentations .......................................................................................................................... 9 3.4 Conference Day 1 .................................................................................................................. 13 3.5 Conference Day 2 .................................................................................................................. 15 3.6 Conclusion ............................................................................................................................. 15 4 Report of Working Group D: Creation of Instructional Materials ................................................ 16 4.1 Abstract ................................................................................................................................. 16 4.2 Participants ........................................................................................................................... 17 4.3 Presentations on Conference Day 1 ...................................................................................... 17 4.4 Presentations on Conference Day 2 ...................................................................................... 19 4.5 Summary of Presentations and Discussions ......................................................................... 21 4.6 Conclusion ............................................................................................................................. 27 5 Report of Working Group E: GeoGebra at Universities and in Teacher Education ...................... 27 5.1 Abstract ................................................................................................................................. 27 5.2 Participants ........................................................................................................................... 27 5.3 Conference Day 1: GeoGebra in Teacher Education ............................................................. 28 5.4 Conference Day 2: University Mathematics ......................................................................... 32 5.5 Group Discussions ................................................................................................................. 33 5.6 Conclusion ............................................................................................................................. 34 6 Report of Working Group F: GeoGebra Institutes and Research ................................................. 34 6.1 Abstract ................................................................................................................................. 34 6.2 Participants ........................................................................................................................... 35 6.3 Presentations ........................................................................................................................ 35 6.4 Overall Recommendations of the Group .............................................................................. 40 7 Concluding Remarks ...................................................................................................................... 41 2 1 Conference Program Time Tuesday, July 14, 2009 Wednesday, July 15, 2009 8:40 – 9:00 Welcome Day Overview Keynote: Markus Hohenwarter Keynote: Zsolt Lavizca 9:00 – 9:40 GeoGebra Conference 2009 (pdf, ppt, GeoGebra Institute and Research (pdf, zip) ppt) 9:40 – 10:00 Introduction of Working Groups Networking Break 10:00 – 10:30 Coffee Break Coffee Break 10:30 – 12:00 Working Groups: Session 1 Working Groups: Session 3 12:00 – 13:20 Lunch Lunch Keynote: Damjan Kobal Keynote: Tomas Recio The use of GeoGebra to motivate, to 13:20 – 14:00 The long journey from J. Nash to present and to deepen the GeoGebra (html, zip) comprehension of math (pdf) 14:00 – 15:30 Working Groups: Session 2 Working Groups: Session 4 15:30 – 16:00 Coffee Break Coffee Break 16:00 – 16:40 Working Groups: Day Summary Session Working Groups: Day Summary Session Reports of Working Groups and 16:40 – 18:00 Reports of Working Groups Conclusion 2 Report of Working Group AB: Software Development and Online Systems Working Group Chairs Markus Hohenwarter, [email protected] (Austria) Yves Kreis, [email protected] (Luxembourg) 2.1 Abstract The primary aim of this working group was to exchange ideas and discuss plans for future extensions of GeoGebra and how to organise its developer community. As an open‐source project with a large user base, the future development of GeoGebra will be substantially influenced by the needs and desires of the GeoGebra user community and by the strength and cohesiveness of the GeoGebra developers. 2.2 Participants First Name Last Name Country E‐mail Miguel Abanades Spain [email protected] Josef Böhm Austria [email protected] 3 First Name Last Name Country E‐mail Francisco Botana Spain [email protected] Janne Cederberg Finland [email protected] Jesús Escribano Spain [email protected] Tatsuyoshi Hamada Japan [email protected]‐u.ac.jp Peter Hofbauer Austria [email protected] Bernát Kalló Hungary [email protected] Pellumb Kllogjeri Albania [email protected] Zoltán Kovács Hungary [email protected] Matija Lokar Slovenia [email protected]‐lj.si Heidi Metzger‐Schuhäker Austria [email protected] Walther Neuper Austria [email protected] Dani Novak USA [email protected] Yasuhide Numata Japan [email protected]‐tokyo.ac.jp Pavel Pech Czech Republic [email protected] Peter Richert Germany peter.richert@fh‐muenster.de Ilya Serbis Russia [email protected] Florian Sonner Germany [email protected] Kurt Söser Austria [email protected] Peter Tierney‐Fife USA ptierney‐[email protected] Eno Tonisson Estonia [email protected] 2.3 Discussion Overview This working group allowed several