GeoGebra, a free, open-source, dynamic mathematics software, is rapidly gaining popularity in the teaching and learning of mathematics around the world. Currently, GeoGebra is translated to 62 languages, used in 190 countries, and downloaded by approximately 500,000 users in each month, and clearly making an impact on mathematics education in most countries. This increased use compelled the establishment of the International GeoGebra Institute (IGI) that serves as a virtual organization to support local GeoGebra initiatives and institutes. There are already 130 institutes in 85 countries, which pursue training and support of teachers, develop teaching materials, and carry out research projects. In this talk, Zsolt will outline the directions of GeoGebra software development, its extension to STEM subjects, activities of its community, and the work of GeoGebra Institutes. About the Speaker: Dr Zsolt Lavicza is a teaching associate in the Faculty of Education at the University of Cambridge. After receiving his degrees in mathematics and physics in Hungary, Zsolt began his postgraduate studies in applied mathematics. While teaching several mathematics courses at the University of Cincinnati he became interested in researching issues in the teaching and learning mathematics. In particular, he focused on investigating issues in relation to the use of technology in undergraduate mathematics education. Since then both at the University of Michigan and Cambridge, he has worked on several research projects examining technology and mathematics teaching in a variety of classroom environments. In addition, he became interested in studying quantitative methodologies in educational research. Zsolt is now the Director for Research and Community Development of GeoGebra.