GeoGebra

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GeoGebra
Geogebra.svg
Dandelin's Theorem, made in GeoGebra: http://tube.geogebra.org/student/m122750
GeoGebra 5.0.0.0
Developer(s) Markus Hohenwarter et al
Stable release 5.0.18.0 (October 17, 2014 (2014-10-17)) [±]
Preview release (none)[1] (September 12, 2014 (2014-09-12)) [±]
Written in Java
Operating system Cross-platform
Platform Java, HTML5
Type Interactive geometry software
License "GeoGebra Non-Commercial License Agreement", some portions under GPL, CC-BY-NC-SA
Website www.geogebra.org

GeoGebra is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics and science from primary school to university level. GeoGebra is available on multiple platforms with its desktop applications for Windows, Mac OS and Linux, with its tablet apps for Android, iPad and Windows, and with its web application based on HTML5 technology.

Its creator, Markus Hohenwarter,[2] started the project in 2001 at the University of Salzburg, continuing it at Florida Atlantic University (2006–2008), Florida State University (2008–2009), and now at the University of Linz together with the help of open-source developers and translators all over the world.

After a successful Kickstarter campaign, GeoGebra expanded their offerings to include an iPad, an Android and a Windows Store app version.[3]

Interactive geometry, algebra, statistics and calculus[edit]

GeoGebra is interactive mathematics software for learning and teaching mathematics and science from primary school up to university level. Constructions can be made with points, vectors, segments, lines, polygons, conic sections, inequalities, implicit polynomials and functions. All of them can be changed dynamically afterwards. Elements can be entered and modified directly via mouse and touch, or through the Input Bar. GeoGebra has the ability to use variables for numbers, vectors and points, find derivatives and integrals of functions and has a full complement of commands like Root or Extremum. Teachers and students can use GeoGebra to make conjectures and to understand how to prove geometric theorems.

Its main features are:

Exporting[edit]

Dynamic GeoGebra applets can be directly uploaded to GeoGebraTube,[4] the official repository website of GeoGebra related free and interactive learning and teaching resources. It started working in June 2011, and it contains about 90 000 (in April 2014) materials, like interactive worksheets, simulations, games, and books made by GeoGebra.

Constructed projects can be also exported in several static image formats or as Animated GIF. SVG vector images can be further edited using third party software, e.g. Inkscape. EMF vector formats can be directly imported in several Office applications. There are also options for exporting to the system clipboard, PNG, PDF, EPS. GeoGebra can also create code that can be used inside LaTeX files through its PSTricks, PGF/TikZ and Asymptote export options.

Licensing[edit]

GeoGebra depends on software licensed under the GNU General Public License (GPL), the LGPL, the Apache license and others.[5] The software is licensed under the "GeoGebra Non-Commercial License Agreement",[6] which asserts that while the "source code is licensed […] under the terms of the GNU General Public License", the translation files, installers, and web services are licensed under non-GPL-compatible terms. Commercial use is prohibited without the purchase of a separate license[6] which prevents the resulting combined work from being considered free software.[7][8]

Community[edit]

The International GeoGebra Institute (IGI) works with more than 140 (in 2014 March) user groups at universities and non-profit organizations around the world. IGI joins teachers, students, software developers and researchers to support, develop, translate and organise the GeoGebra related tasks and projects. The local user groups support students and teachers in their region. As part of the International GeoGebra Institute network they share free educational materials via GeoGebraTube, organize workshops, and work on projects related to GeoGebra. The International GeoGebra Institute may certify local GeoGebra users, experts, and trainers according to certain guidelines.

Awards[edit]

  • MERLOT Award for Exemplary Online Learning Resources – MERLOT Classics 2013 (Las Vegas, Nevada, USA)
  • NTLC Award 2010: National Technology Leadership Award 2010 (Washington D.C., USA)
  • Tech Award 2009: Laureate in the Education Category (San Jose, California, USA)
  • BETT Award 2009: Finalist in London for British Educational Technology Award
  • SourceForge.net Community Choice Awards 2008: Finalist, Best Project for Educators
  • AECT Distinguished Development Award 2008: Association for Educational Communications and Technology (Orlando, USA)
  • Learnie Award 2006: Austrian Educational Software Award for "Wurfbewegungen mit GeoGebra" (Vienna, Austria)
  • eTwinning Award 2006: 1st prize for "Crop Circles Challenge" with GeoGebra (Linz, Austria)
  • Les Trophées du Libre 2005: International Free Software Award, category Education (Soisson, France)
  • Comenius 2004: German Educational Media Award (Berlin, Germany)
  • Learnie Award 2005: Austrian Educational Software Award for "Spezielle Relativitätstheorie mit GeoGebra" (Vienna, Austria)
  • digita 2004: German Educational Software Award (Cologne, Germany)
  • Learnie Award 2003: Austrian Educational Software Award (Vienna, Austria)
  • EASA 2002: European Academic Software Award (Ronneby, Sweden)

See also[edit]

References[edit]

  1. ^ Versions – GeoGebra, dev.geogebra.org, 2014-09-12, retrieved 2014-09-14 
  2. ^ JKU | IDM » Markus Hohenwarter, Jku.at, 2013-06-13, retrieved 2013-08-29 
  3. ^ GeoGebra for tablets (iPad and Android), Kickstarter.com, retrieved 2013-08-29 
  4. ^ GeoGebraTube: http://www.geogebratube.org
  5. ^ "Sources for used libraries". International GeoGebra Institute. Retrieved 23 February 2014. 
  6. ^ a b "GeoGebra License". International GeoGebra Institute. Retrieved 23 February 2014. 
  7. ^ Prescott, Stuart (19 August 2013). "GeoGebra licence and GPL violation". pkg-java-maintainers mailing list. http://lists.alioth.debian.org/pipermail/pkg-java-maintainers/2013-August/043096.html. Retrieved 23 February 2014.
  8. ^ Hohenwarter, Markus (24 September 2013). "GeoGebra licence and GPL violation". pkg-java-maintainers mailing list. http://lists.alioth.debian.org/pipermail/pkg-java-maintainers/2013-September/043563.html. Retrieved 23 February 2014.

External links[edit]