Vanda Santos is a Researcher at the Research Centre Didatics and Technology in Education of Trainers (CIDTFF) at the University of Aveiro, Portugal. She teaches subjects in the area of Didactics of Mathematics and previously has been teaching various Mathematics subjects, in different Polytechnic Institutes as assistant and at University Timor Lorosa’e of East Timor as invited professor. Her main research area are educational technologies, computational geometry, mathematical software, mathematics , education, with special focus on collaborative learning, active learning and  development of mathematical reasoning