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See detailGeoGebra
Hohenwarter, Markus; Borcherds, Michael; Ancsin, Gabor et al

Software (2011)

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See detailEstablishing a Professional Development Network in England around Dynamic Mathematics Software
Lavicza, Zsolt; Hohenwarter, Markus; Jones, Keith et al

Poster (2011, February 10)

The principal aim of this project was to conduct research on GeoGebra-related professional development materials and approaches. The study was conducted through tight collaboration of educational ... [more ▼]

The principal aim of this project was to conduct research on GeoGebra-related professional development materials and approaches. The study was conducted through tight collaboration of educational researchers and mathematics teachers in England utilising frameworks of communities of inquiry (Jaworski, 2006) and collaborative design (Cobb, Confrey, diSessa, Lehrer, & Schauble, 2003). By joint collaboration and design we aimed to establish a core group of GeoGebra experts in England who can offer professional development and support for teachers. We also wanted to explore the ways in which GeoGebra can be used to enhance the teaching and learning of mathematics within the English curriculum. [less ▲]

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See detaili2g Common File Format Final Version
Egido, Santiago; Hendriks, Maxim; Kreis, Yves UL et al

Report (2010)

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See detailThe Future of GeoGebra
Kreis, Yves UL; Hohenwarter, Markus

Scientific Conference (2010, June 29)

The development team of GeoGebra is growing and very busy. Besides GeoGebra was selected to participate in the Google Summer of Code (GSoC) initiative where 5 students have been assigned to the ... [more ▼]

The development team of GeoGebra is growing and very busy. Besides GeoGebra was selected to participate in the Google Summer of Code (GSoC) initiative where 5 students have been assigned to the association. In our presentation we will show alpha and beta development ideas which might get included in a future GeoGebra version: GeoGebraCAS, GeoGebra3D, GeoGebraTouch, Layout Manager, Locus Line Equation, Implicit Plotting, ... [less ▲]

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See detailFirst International GeoGebra Conference 2009
Chrysanthou, Irene; Hohenwarter, Judith; Hohenwarter, Markus et al

Report (2010)

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 ... [more ▼]

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. [less ▲]

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See detaili2g Common File Format Draft v2
Hendriks, Maxim; Kortenkamp, Ulrich; Kreis, Yves UL et al

Report (2009)

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See detailSoftware Development & Online Systems: Extensions
Hohenwarter, Markus; Kreis, Yves UL

Scientific Conference (2009, July 15)

The primary aims of this working group are to exchange ideas/plans for future extensions of GeoGebra and organise its developer community. Current projects include extending the statistics and spreadsheet ... [more ▼]

The primary aims of this working group are to exchange ideas/plans for future extensions of GeoGebra and organise its developer community. Current projects include extending the statistics and spreadsheet capabilities of GeoGebra and improving CAS integration into the software. In addition, some work has been already carried out on the 3D extension of GeoGebra. 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. The focus areas of this working group include: * Features & Wishlist * Extensions: exploring possible extensions of GeoGebra features like Spreadsheet, CAS, 3D, etc. * Online Systems: integration into online systems like Moodle, Sage, WebWork, etc. * Wishlist & Roadmap: developing and evaluating a wish list for future extensions * Organization * User Community: new website, GeoGebraWiki, material manager * Developer Community: distributing work and managing the open-source developer community * Support * Projects: listing existing projects; developing ideas for research and development projects; * Funding: exploring resources for future developments and supporting developers [less ▲]

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See detailSoftware Development & Online Systems: CAS
Hohenwarter, Markus; Kreis, Yves UL

Scientific Conference (2009, July 14)

The primary aims of this working group are to exchange ideas/plans for future extensions of GeoGebra and organise its developer community. Current projects include extending the statistics and spreadsheet ... [more ▼]

The primary aims of this working group are to exchange ideas/plans for future extensions of GeoGebra and organise its developer community. Current projects include extending the statistics and spreadsheet capabilities of GeoGebra and improving CAS integration into the software. In addition, some work has been already carried out on the 3D extension of GeoGebra. 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. The focus areas of this working group include: * Features & Wishlist * Extensions: exploring possible extensions of GeoGebra features like Spreadsheet, CAS, 3D, etc. * Online Systems: integration into online systems like Moodle, Sage, WebWork, etc. * Wishlist & Roadmap: developing and evaluating a wish list for future extensions * Organization * User Community: new website, GeoGebraWiki, material manager * Developer Community: distributing work and managing the open-source developer community * Support * Projects: listing existing projects; developing ideas for research and development projects; * Funding: exploring resources for future developments and supporting developers [less ▲]

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See detailGeoGebra 3.2 – The new Spreadsheet View
Kreis, Yves UL; Hohenwarter, Markus; Hohenwarter, Judith

Scientific Conference (2009, July 12)

GeoGebra (www.geogebra.org) is a free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry ... [more ▼]

GeoGebra (www.geogebra.org) is a free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry, algebra, and calculus, which other packages treat separately, into a single easy-to-use package for learning and teaching mathematics from elementary through university level. So far GeoGebra’s user interface allowed algebraic (i.e. coordinates of points, equations) and graphical (i.e. points, function graphs) representations of mathematical objects. While coordinates and equations were displayed in the algebra view on the left hand side, their graphical representations could be seen in the graphics view on the right hand side. The release version 3.2 (available in April 2009) adds another – third – view: the spreadsheet view. Now various kinds of mathematical objects – not only numbers – can also be put inside spreadsheet cells. All representations of the same object are linked dynamically and adapt automatically to changes made to any of the representations, no matter how they were initially created. This enables users to connect statistical reasoning with other areas of mathematics. In this presentation we will introduce the new view, present some examples and discuss the opportunities it offers for the teaching and learning of mathematics. [less ▲]

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See detailGeoGebra
Hohenwarter, Markus; Borcherds, Michael; Kreis, Yves UL

Software (2009)

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See detailGeoGebra 3.2 - The new Spreadsheet View
Kreis, Yves UL; Hohenwarter, Markus; Hohenwarter, Judith

in Bardini, Caroline; Fortin, Philippe; Oldknow, Adrian (Eds.) et al Proceedings of the 9th International Conference on Technology in Mathematics Teaching (2009)

The release 3.2 of GeoGebra will add another – third – view for mathematical objects: the Spreadsheet View. In this paper we will introduce the new view, present some examples and discuss the ... [more ▼]

The release 3.2 of GeoGebra will add another – third – view for mathematical objects: the Spreadsheet View. In this paper we will introduce the new view, present some examples and discuss the opportunities the new Spreadsheet View will offer for teaching and learning of mathematics. [less ▲]

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See detailCommon File Format v1
Hendriks, Maxim; Kortenkamp, Ulrich; Kreis, Yves UL et al

Report (2008)

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Peer Reviewed
See detailGeoGebra – free software for dynamic geometry, algebra and calculus
Hohenwarter, Markus; Hohenwarter, Judith; Kreis, Yves UL et al

Poster (2008, July 09)

GeoGebra (www.geogebra.org) is free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry, algebra ... [more ▼]

GeoGebra (www.geogebra.org) is free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry, algebra, and calculus, which other packages treat separately, into a single easy-to-use package for learning and teaching mathematics from elementary through university level. GeoGebra offers the powerful opportunity for teachers to create interactive online learning environments which have led many teachers to foster experimental and discovery learning for their students. An extensive self-supporting user community shares free interactive teaching materials on the GeoGebraWiki, supports fellow users through a user forum, and has translated GeoGebra to 36 languages. In this poster presentation, we will both present applications of the software and plans for its future development, as well as raise some of the implications of technological developments such as GeoGebra for the pre-service education and inservice professional development of teachers of mathematics. [less ▲]

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See detailGeoGebra – free dynamic mathematics software
Hohenwarter, Markus; Hohenwarter, Judith; Kreis, Yves UL et al

Scientific Conference (2008, July 09)

GeoGebra is free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry, algebra, and calculus ... [more ▼]

GeoGebra is free, multi-platform, open-source dynamic mathematics software with rapidly growing worldwide popularity. The basic idea of the software is to join dynamic geometry, algebra, and calculus, which other packages treat separately, into a single easy-to-use package for learning and teaching mathematics from elementary through university level. Participants of this workshop will be introduced to the versatile possibilities of GeoGebra in hands-on activities in geometry, algebra, and calculus. They will learn how to use GeoGebra as a visualization tool for teaching and to create student-engaging interactive online materials. Free software and materials will be provided. No special computer experience is required. [less ▲]

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See detailMathematics teacher development and technology: towards an International GeoGebra Institute
Hohenwarter, Markus; Hohenwarter, Judith; Kreis, Yves UL et al

Poster (2008, July 09)

Research indicates that despite the numerous benefits of using technology in mathematics education, the process of embedding technology in classrooms is slow and complex. Most teachers need more than just ... [more ▼]

Research indicates that despite the numerous benefits of using technology in mathematics education, the process of embedding technology in classrooms is slow and complex. Most teachers need more than just being provided with technology if the benefits of technology are to be substantially realized. It has been suggested that adequate training and collegial support boost teachers' willingness to integrate technology into their teaching and to develop successful technology-assisted teaching practices. GeoGebra is free open-source dynamic software for mathematics teaching and learning that offers geometry and algebra features in a fully connected software environment. Its pool of free interactive materials and user forum are examples of online collaboration of a world-wide community of mathematics educators. In this poster presentation, we will outline the emergence of the software GeoGebra and its recent developments as well as the first steps towards (using present tense to show that work has already been done) International GeoGebra Institute to be able to offer structured training and support for teachers who are ready to integrate GeoGebra into their classrooms. In addition, we will organize and coordinate research projects in relation to GeoGebra to enhance the development of training and support materials. While our initial plan is to establish an IGI site at Florida Atlantic University (USA), in the long run our goal is to collaborate with colleagues and set up other institutes in various locations around the world. [less ▲]

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See detailTeaching and Learning Calculus with Free Dynamic Mathematics Software GeoGebra
Hohenwarter, Markus; Hohenwarter, Judith; Kreis, Yves UL et al

Scientific Conference (2008, July 08)

Research suggests that despite the numerous benefits of using technology in mathematics education, the process of embedding technology in classrooms is slow and complex (Cuban, Kirkpatrick, & Peck, 2001 ... [more ▼]

Research suggests that despite the numerous benefits of using technology in mathematics education, the process of embedding technology in classrooms is slow and complex (Cuban, Kirkpatrick, & Peck, 2001). GeoGebra is open-source software for mathematics teaching and learning that offers geometry, algebra and calculus features in a fully connected and easy-to-use software environment. It is available free of charge and used by thousands of students and teachers around the world in classrooms and at home. In this presentation we will both present applications of GeoGebra for calculus teaching at the high school and college level, as well as raise some of the implications of free and easy-to-use software such as GeoGebra for technology integration into the teaching and learning of calculus. [less ▲]

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See detailGeoGebra
Hohenwarter, Markus; Borcherds, Michael; Kreis, Yves UL

Software (2008)

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See detailTechnology professional development and research collaboration: Towards an International GeoGebra Institute
Hohenwarter, Markus; Kreis, Yves UL; Lavisca, Zsolt

in Vásárhelyi, Éva (Ed.) Beiträge zum Mathematikunterricht 2008 (2008)

Research suggests that, for the majority of teachers, solely providing technology is insufficient for the successful integration of technology into their teaching (Cuban, Kilpatrick and Peck 2001). It has ... [more ▼]

Research suggests that, for the majority of teachers, solely providing technology is insufficient for the successful integration of technology into their teaching (Cuban, Kilpatrick and Peck 2001). It has been suggested that adequate training and collegial support increase teachers' willingness to integrate technology into their teaching and to develop successful technology-assisted teaching practices (Becker, Ravitz and Wong 1999). Our aim is to establish an International GeoGebra Institute (IGI) to be able to offer free structured training and support for teachers who are ready to integrate GeoGebra into their classrooms. In addition, we endeavour to organise and coordinate research projects in relation to GeoGebra to enhance the development of training and support materials. Whereas our initial plan is to establish an IGI site at Florida Atlantic University (USA), in the long run our goal is to collaborate with colleagues and set up other institutes in various locations around the world. [less ▲]

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See detailGeoGebra
Hohenwarter, Markus; Kreis, Yves UL

Software (2006)

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