GeoGebra
Encyclopedia
GeoGebra is an interactive geometry software
for education in schools. Most parts of GeoGebra are free software
. GeoGebra is written in Java
and thus available for multiple platforms
.
Its creator, Markus Hohenwarter, 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.
. 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 on screen, 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 can use GeoGebra to make conjectures and prove geometric theorems.
There is a pool of free educational resources and dynamic worksheets hosted on a wiki (GeoGebraWiki).
(VLE), such as Moodle). 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 and EPS.
.
Interactive geometry software
Interactive geometry software are computer programs which allow one to create and then manipulate geometric constructions, primarily in plane geometry. In most IGS, one starts construction by putting a few points and using them to define new objects such as lines, circles or other points...
for education in schools. Most parts of GeoGebra are free software
Free software
Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...
. GeoGebra is written in Java
Java (programming language)
Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...
and thus available for multiple platforms
Cross-platform
In computing, cross-platform, or multi-platform, is an attribute conferred to computer software or computing methods and concepts that are implemented and inter-operate on multiple computer platforms...
.
Its creator, Markus Hohenwarter, started the project in 2001 at the University of Salzburg
University of Salzburg
The University of Salzburg, or Paris Lodron University after its founder, the Prince Archbishop Paris Lodron, is located in the Austrian city of Salzburg, Salzburgerland, home of Mozart. It is divided into 4 faculties: catholic theology, law, humanities and natural science.Founded in 1622, it...
, continuing it at Florida Atlantic University
Florida Atlantic University
Florida Atlantic University, also referred to as FAU or Florida Atlantic, is a public, coeducational, research university located in , United States. The university has six satellite campuses located in the Florida cities of Dania Beach, Davie, Fort Lauderdale, Jupiter, Port St. Lucie, and in Fort...
(2006–2008), Florida State University
Florida State University
The Florida State University is a space-grant and sea-grant public university located in Tallahassee, Florida, United States. It is a comprehensive doctoral research university with medical programs and significant research activity as determined by the Carnegie Foundation...
(2008–2009), and now at the University of Linz together with the help of open-source developers and translators all over the world.
Dynamic Geometry, Algebra and Calculus
GeoGebra is dynamic geometry softwareInteractive geometry software
Interactive geometry software are computer programs which allow one to create and then manipulate geometric constructions, primarily in plane geometry. In most IGS, one starts construction by putting a few points and using them to define new objects such as lines, circles or other points...
. 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 on screen, 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 can use GeoGebra to make conjectures and prove geometric theorems.
There is a pool of free educational resources and dynamic worksheets hosted on a wiki (GeoGebraWiki).
Exporting
Constructed projects can be exported in several formats. Dynamic applets can be directly uploaded to GeoGebraTube, exported to html (as a single file suitable for use in a virtual learning environmentVirtual learning environment
Defined largely by usage, the term virtual learning environment has most, if not all, of the following salient properties:* It is Web-based* It uses Web 2.0 tools for rich 2-way interaction* It includes a content management system...
(VLE), such as Moodle). 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 and EPS.
Licensing
Most parts of the GeoGebra program are licensed under GPL and CC-BY-SA, making them free softwareFree software
Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...
.
Awards
- NTLC Award 2010: National Technology Leadership Award 2010 (Washington D.C., USA)
- Tech Award 2009: Laureat 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 LibreLes Trophées du LibreLes Trophées du Libre contest is a free software contest whose goal is to promote innovative software projects and give these projects recognition and media coverage - recently also to motivate students and academic institutions with special prizes. The competition is international and it is...
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
- C.a.R.C.a.R.C.a.R.– Compass and Ruler – is a free and open source interactive geometry software that can do geometrical constructions in Euclidean and non-Euclidean geometry. The software is Java based. The author is R...
- GraphmaticaGraphmaticaGraphmatica is a graphing program created by Keith Hertzer, a graduate of the University of California, Berkeley. It runs on Microsoft Windows....
- KigKig (software)Kig is free and open source interactive geometry software, which is part of theKDE edutainment project. It has some facilities for scripting in Python, as well as the creating macros from existing constructions.- Import and export :...
External links
- GeoGebra website
- GeoGebra Step-by-step Tutorial Series - more than 50 basic and advanced tutorials with new ones added regularly.
- GeoGebra's YouTube Channel - including tips and tutorials