References of "Kreis, Yves 50002135"
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See detailI2G API Specification
Kortenkamp, Ulrich; Kreis, Yves UL; Libbrecht, Paul et al

Report (2009)

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See detailTeaching with Information and Communication Technologies: Results of a Large Scale Survey
Linckels, Serge UL; Kreis, Yves UL; Reuter, Robert UL et al

in Farally-Semerad, Gail; McRitchie, Karen; Rugg, Beth (Eds.) SIGUCCS '09: Proceedings of the 37th annual ACM SIGUCCS fall conference: communication and collaboration (2009)

On behalf of the Ministry of Education in Luxembourg (Europe), 821 teachers - from primary school to higher education - were questioned in an online survey at the beginning of 2009 about their use of ... [more ▼]

On behalf of the Ministry of Education in Luxembourg (Europe), 821 teachers - from primary school to higher education - were questioned in an online survey at the beginning of 2009 about their use of information and communication technologies (ICT) in education. In this paper, we briefly present the context of the questionnaire and will then focus on its outcomes. The preliminary analysis of the results will mainly focus on the closed questions of the survey and try to answer several fundamental questions related to the availability, as well as to the current and the future usage of ICT in schools. Most of the teachers use ICT in some way in education, but printed documents remain the most popular source of information during class. The main argument listed to use ICT is the increase of students' motivation, while the major concern is the technical hardware dependency or unavailability. Also, an important number of teachers is concerned about the increased preparation time that is in most cases not rewarded. Finally, a vast majority of the teachers is willing to take part in an e-learning training program, probably because they feel unqualified or do not (yet) see the advantage of ICT for their classes. [less ▲]

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See detailGeoGebraPrim - GeoGebra for Primary School
Kreis, Yves UL; Dording, Carole UL

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

The aims of the project are on one hand the improvement of the children’s understanding of the elementary geometric concepts and on the other side a deeper insight in the bond of geometry and algebra. The ... [more ▼]

The aims of the project are on one hand the improvement of the children’s understanding of the elementary geometric concepts and on the other side a deeper insight in the bond of geometry and algebra. The study consists in a pre-/post-test scenario combined with observations of particularly interesting situations. All in all approximately 200 children of 9 years will participate; about half of them will follow a traditional paper/pencil geometry course while the others will be mixing experiences on the computer to the traditional ones. So far the existing Dynamic Geometry System GeoGebra has been adapted to the needs of the primary school through multiple observations of children working with the software. Besides it has been integrated into the TAO (Testing Assisté par Ordinateur – Computer-Assisted Testing) platform that will be used partially for the final test. In this presentation we will give a short overview of the project, explain the educational and technological concepts used and present first results of the study. [less ▲]

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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 detailUsing the Intergeo Platform for Teaching and Research
Kortenkamp, Ulrich; Dohrmann, Christian; Kreis, Yves UL et al

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

The main objective of the Intergeo Project (http://i2geo.net) is to make digital content for mathematics teaching in Europe more accessible, usable and exploitable. So far, Intergeo provides an Internet ... [more ▼]

The main objective of the Intergeo Project (http://i2geo.net) is to make digital content for mathematics teaching in Europe more accessible, usable and exploitable. So far, Intergeo provides an Internet platform that offers content in a searchable and metadata-tagged form. In particular, teachers can search for suitable content based on the key concepts and themes of their curriculum. Once found, the content can be used either directly on the web or using the software of choice. Another very important aspect is that all material used in the classroom should adhere to certain pedagogical and mathematical quality standards. Intergeo facilitates the evaluation of material by means of a quality-testing framework that aids teachers and researchers in assessing the educational value of the digital content. The questionnaire used for this can be answered both quickly as well as in depth. In this workshop we will show how to use the platform and how to participate in the project as a user or by becoming an associate partner. Also, we will help software and tool authors to be able to read and write the new standard format for interactive geometry, i2g. [less ▲]

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See detailThe Intergeo File Format in Progress
Abánades, Miguel; Botana, Francisco; Escribano, Jesús et al

in Davenport, James H. (Ed.) Proceedings of the 22nd OpenMath Workshop (2009)

In this paper we describe the ongoing effort to specify a common file format for Interactive or Dynamic Geometry Systems (DGS). Our approach is based on the OpenMath standard, and uses its flexible ... [more ▼]

In this paper we describe the ongoing effort to specify a common file format for Interactive or Dynamic Geometry Systems (DGS). Our approach is based on the OpenMath standard, and uses its flexible extension mechanisms like Content Dictionaries. We discuss the various design decisions, the Content Dictionaries that have been defined, as well as open questions to be resolved. [less ▲]

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See detailNew perspectives on the use of GeoGebra for improving teaching quality
Kreis, Yves UL

Scientific Conference (2008, October 29)

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

Report (2008)

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See detailIntergeo - Interoperable Interactive Geometry for Europe
Kortenkamp, Ulrich; Kreis, Yves UL; Laborde, Jean-Marie

Poster (2008, July 09)

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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 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 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-related activities at the University of Luxembourg
Kreis, Yves UL

Scientific Conference (2008, May 07)

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

Software (2008)

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See detailKann ein DGS den Geometrieunterricht für alle Kinder verändern?
Kreis, Yves UL

Scientific Conference (2008, March 13)

Eine Dynamische Geometrie Software (DGS) setzt das Handeln der Kinder in den Vordergrund. Die Schüler manipulieren ein Programm, das ihnen erlaubt Änderungen in geometrischen Figuren visuell zu erfassen ... [more ▼]

Eine Dynamische Geometrie Software (DGS) setzt das Handeln der Kinder in den Vordergrund. Die Schüler manipulieren ein Programm, das ihnen erlaubt Änderungen in geometrischen Figuren visuell zu erfassen und experimentell zu beeinflussen. Dieser dynamische Umgang mit den einzelnen mathematischen Objekten in einem entdeckenden Unterricht bewirkt vermutlich ein besseres Verständnis der elementaren Geometriekenntnisse bei allen Kindern. In dem DGS GeoGebra werden zusätzlich zu der grafischen Darstellung die dazugehörigen algebraischen Ausdrücke (z.B. Koordinaten, Länge, Umfang) angezeigt. Eine Änderung dieser Ausdrücke bewirkt auch eine Änderung der geometrischen Objekte und umgekehrt. Somit können die Kinder die Formeln des Umfangs und des Flächeninhalts experimentell entdecken und anschließend direkt in GeoGebra anwenden. [less ▲]

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See detailIntergeo - Interoperable Interactive Geometry for Europe
Kreis, Yves UL; Schandeler, Ingo; Libbrecht, Paul

Scientific Conference (2008, February 01)

Interactive Geometry is a way to improve mathematics education with the help of a computer. Using sophisticated software, sketches and figures can be brought to life, comparable to what movies mean to ... [more ▼]

Interactive Geometry is a way to improve mathematics education with the help of a computer. Using sophisticated software, sketches and figures can be brought to life, comparable to what movies mean to images. Although many examples of helpful activities that were created using Interactive Geometry Software exist, interactive geometry software is still not used regularly in classrooms. In fact, many teachers do not know about the new possibilities, or they do not have access to the necessary resources. The EU-co-funded project Intergeo will attack the three main barriers for a EU-wide adoption of the existing material: missing search facilities, lack of interoperability, and missing quality information. [less ▲]

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