Interoperable interactive geometry for Europe
I forgot my login data

Report a bug

Fan club

Quick Intro Videos
click to start movie
Create A Simple
GeoGebra Resource (25Mb)
click to start movie
Filing a review
click to start movie
Find a Resource

This platform is brought to you by the intergeo project, funded under the eContent Plus programme of the European commission and by partners

i2geo News

Welcome to i2geo news.


i2geo News Entries

July 4, 2011

New National Teacher Training Center in Germany
We are happy to announce that the German Telekom Stiftung will fund a National Centre for Teacher Training in Mathematics with 5 Mio. € for the next five years. The successful application for the center was submitted by a consortium of six Universities from Berlin and North-Rhine-Westphalia.

CERMAT at PH Karlsruhe, current host of the Intergeo project, is one of the partners of the new
Continue Reading

April 7, 2010

Deadline extension for I2GEO 2010
Many people requested that we admit late submissions to I2GEO 2010, so we are happy to announce that the deadline to submit an abstract for your presentation at I2GEO 2010 has been extended to April 12! Please visit the conference website to submit using the easychair system.
Continue Reading

July 15, 2010

I2GEO 2010 proceedings
Our conference I2GEO 2010 in Hluboká was a great success with about 20 presentations by participants from all over Europe. We will post these soon on the I2GEO 2010 website at Meanwhile, you can find there the papers contributed for download.
Continue Reading

April 7, 2010

V Colóquio de História e Tecnologia no Ensino da Matemática
The 5th Colóquio de História e Tecnologia no Ensino da Matemática takes place in Recife, Brasil - while this is not Europe, we still think it is of interest to the Intergeo community! See for more information.

Also, please don't forget CADGME 2010 and I2GEO 2010 in Budweis!
Continue Reading

July 1, 2011

Special issue of ZDM on Intergeo published
We are proud to announce that Springer has just published a special issue on Interoperable Interactive Geometry. Find the issue and all articles at .
Continue Reading

November 2, 2011

CADGME-2012 in Novi Sad
After a successful conferences held at Pécs, Hungary (2007), Hagenberg, Austria (2009) and Hluboká nad Vltavou, Czech Republic (2010) we are delighted to announce that the CADGME conference continues. The team from Department of Mathematics and Computer Science at Faculty of Sciences, University of Novi Sad has volunteered to host the conference in 2012 in our beautiful city Novi Sad.

Find more on
Continue Reading

October 23, 2009

Intergeo demo at Multilingual Information Access TT
We shall demonstrate the multilingual platform i2geo at the MLIA Technology Transfer Day: cross-curriculum, multiple language of news… we're facing an amount of challenges in an innovative way in i2geo!
Continue Reading

June 29, 2012

Welcome to Halle!
The i2geo server was moved to Halle, Germany.
Continue Reading

March 12, 2014

Eratosthenes Experiment
How do you measure the earth's circumference?

Simply using the sun, a stick, similar triangles, and… communication.

Eratosthenes did it centuries ago. It possible to do that with pupils next Friday, March 21st.

To this end: register on, find a partner school, go out and measure.
Continue Reading

August 5, 2011

JSXGraph @ MathFuture - meet the new DGS
The emerging Dynamic Geometry System JSXgraph will be presented online in the DGS Series of MathFuture.

… next Wednesday, Aug 10th, at 20:00 CET (2:00 PM EST, or… world-time) over Elluminate's LearnCentral.

Join us to discuss the emergence of this new dynamic geometry system which dedicated to the web, being purely made in JavaScript.
Continue Reading

February 7, 2012

i2geo in new shoes
I am happy to announce that we successfully moved to the PH Karlsruhe.
Continue Reading

February 15, 2011 in community mode
Dear users of the platform:
the inter2geo project is now concluded it has provided a wealth of learning resources with dynamic geometry. We look forward to seeing the platform continuously used as it has been.
Continue Reading

September 7, 2010

Release "vignette" of
I am happy to announce a new release of which now include "vignettes", that is a way for the contributing users to upload a preview of the resource in action. I am happy to announce a new release of which now include "vignettes", that is a way for the contributing users to upload a preview of the resource in action.

This release comes with an amount of bug fixes, including optimizations and quality enhancements of the skills-text-box and search tools.
Continue Reading

June 23, 2010

see you at i2geo conference
We're all getting ready for the the i2geo conference, next week in Hluboká nad Vltavou (in the Czech Republic).

The programme is quite exciting:

  • from...

Continue Reading

February 8, 2010

TIME-2010 will be held in Malaga
It would be great if some of you could be present and talk about Intergeo at TIME-2010 (Technology and its Integration into Mathematics Education)
Continue Reading

February 19, 2010

2nd Announcement for I2GEO 2010
Call for papers and workshops for I2GEO 2010
Continue Reading

January 29, 2010

Announce : Intergeo platform, GeoSkills ontology, LOM schema
… sharing pedagogical mathematical resources throughout Europe.

The Intergeo European Project ( is pleased to announce a progress milestone of the Intergeo platform together with GeoSkills ontology and a LOM export.
Continue Reading

January 6, 2010

Announcing I2GEO 2010 and CADGME 2010
We are happy to announce the Intergeo Conference I2GEO 2010 in Budweis, Czech Republic, on July 2-3, 2010. Please see the conference homepage at for details. Selected papers of the conference will be published in ZDM, The International Journal on Mathematics Education. We are also featuring a "best
Continue Reading

November 4, 2009

Curriki 1.8.7 upgrade done
curriki upgrade is done. we now have rolled out our upgrade of Curriki new platform. enjoy!
Continue Reading

October 1, 2009

Intergeo presented at Ectel09 in Nice
Continue Reading

September 21, 2009

Intergeo -> GNU Edu
Intergeo educational metadata ("GeoSkills") are now  available on GNU Edu interface:

You can browse from these pages:
Continue Reading

September 16, 2009

Intergeo on Facebook
You can now become a fan of Intergeo on Facebook - just head over to our page there.
Continue Reading

September 8, 2009

Llamada a la evaluación de recursos
Estimado/a colega:

El equipo Intergeo requiere, en este otoño, la urgente colaboración del profesorado de Secundaria para realizar múltiples evaluaciones de los recursos de geometría dinámica que hemos archivado en Intergeo.

Para ello sólo es preciso
Continue Reading

August 29, 2009

Please raise your hand!
Dear intergeo users, we wish you a pleasant school year with intergeo. The big task for this autumn is to have a lot of feedbacks from you, teachers, within the Quality Review framework
Continue Reading

Welcome to the new Intergeo News Feed
Starting today, we will post all Intergeo news on this blog - stay tuned or, even better, subscribe to the RSS feed, to be always up-to-date!
Continue Reading

August 27, 2009

back from holidays
I am happy to say that back to school is taking place in the project as well with some fresh perspectives on a better show of "showcase pages". An editorial team is being set-up, to watch the contributions, and to maintain the featured resources, the news items, and the featured groups.
Continue Reading

September 9, 2008

All traces converted
The first steps phase concluded and delivered references to more than 3000 constructions available online. They are still in i2geo.
Continue Reading