Maths is interesting, beautiful, amazing, and GeoGebra really makes the difference when you teach mathematics. As a maths teacher, I've been using GeoGebra in the classroom for approximate 7 years, periodically (one hour weekly at least) with some groups, but only occasionally with the others, and I could detect an increasing of learning motivation in the first groups. Students start by playing with GeoGebra, but they continue learning by themselves and become creatives, which is very encouraging, pedagogically.
Mathematically, GeoGebra is great to discover new things, as geometrical loci, functions or equations, to model some natural phenomena as movement or electromagnetism, and can help you to solve complicated problems or optimize solutions. I am interested in new ways of using GeoGebra, for example gamification, art, or remotely learning.
Moreover, GeoGebra is constantly improved by its team, who always come with new features adapted to the newest technologies, and is the center of a large community that can contribute to a more improving. As a member of this community, I've been promoting GeoGebra in schools from many European countries, together with teachers and students attending in European projects as Comenius or Erasmus+, organising GeoGebra demonstration lessons, workshops for other teachers, comparative studies, etc. doing a field work rather than an online one. I hope to continue these projects, and further to promote and support the GeoGebra community development, as I truly believe this could contribute for a better education in Europe.