JULY 30, 2018


GeoGebra is a free dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphing, statistics, calculus and programming in one easy-to-use package. GeoGebra is a rapidly expanding community of millions of users located in just about every country. GeoGebra has become the leading provider of dynamic mathematics software, supporting science, technology, engineering and mathematics (STEM) education and innovations in teaching and learning worldwide.

The International Congress of Mathematicians (ICM) offers a good opportunity for the GeoGebra Community to meet colleagues from all around the world. So, join us!


There will be some keynote presentations highlighting important issues in both software and community developments (20 min for presentation + 10 min for questions). We welcome submissions for short presentations about interesting applications of GeoGebra, research (including the use of GeoGebra to research Mathematics) and local community activities, these presentations can be 12 min for presentation + 3 min for questions due to the shortage of time. Posters can be also presented in digital form.

There will be no parallel sessions. All participants will attend the presentations of the other colleagues. The list of abstracts is nere.



The event will be held on July 30, 2018 (Monday) in the auditorium of the Building F (Faculty of Economics) at the Gragoatá Campus of the Fluminense Federal University, Niterói, RJ, Brazil.

Niterói lies across Guanabara Bay facing the city of Rio de Janeiro and forms part of the Rio de Janeiro Metropolitan Area. It can be reached from Rio de Janeiro by boat, by car or by bus. By boat: the ferry between Rio and Niteroi is a pleasant and affordable trip. It takes between 10 and 20 minutes to cross the bay, depending on the fare for a slow or fast boat from adjoining terminals at Praça XV. By car or bus: From Rio you just drive through the longest bridge in Brazil, the Ponte Rio-Niterói; just like the name says it connects both cities. It´s 13 km (8 mi) in length and there is a toll of R$ 4,90 (you pay 1 way only, coming from Rio). Buses from Rio: Lines 771, 770, 100 and others.


Bruno Leite:    São Paulo State University (Rio Claro) & Pernambuco Federal University
Celina Aparecida Pereira Abar:    Pontifical Catholic University of São Paulo
Diego Lieban:    Johannes Kepler University & Federal Institute of Rio Grande do Sul
Fabián Vitabar:    Johannes Kepler University & Consejo de Formación en Educación (ANEP)
Humberto José Bortolossi (Chair):    Fluminense Federal University
Zsolt Lavicza:    Cambridge University


Dirce Uesu Pesco, Wanderley Moura Rezende, Humberto José Bortolossi, Bruna Luiz Oliveira, Thatianne Silva, Angela Maria Lima Medina, Carla Cristina de Lima Pracias, Christian Souza Chuva, Guilherme Brandão Guglielmo, Hygor Batista Guse, João Roberto Bêta Casal, Lucas Herick Pereira da Silva, Marianna Ramos Rodrigues, Renan do Espírito Santo, Sara Maria Ramos Alves Moreira, Tayná Lobo da Silva.


If you need any assistance, please, do not hesitate to contact us by the e-mail:


The letters used in the top banner of this page were constructed using the digital compass and ruler according the artist David Lance Goines in his book A Constructed Roman Alphabet: A Geometric Analysis of the Roman Alphabet Including the Greek Characters and the Arabic Numerals. The book won, among other awards, the 1982 AIGA Book Show Award and the 1983 American Book Award (for typography). An interactive GeoGebra version is available here.

The Letter G

Institute of Mathematics and Statistics      Fluminense Federal University International GeoGebra Institute at Rio de Janeiro