Floriano Viseu completed his PhD in Education, in 2008, from the University of Lisbon, in the specialty of Didactics of Mathematics. He is an Assistant Professor at Education Research Center, Institute of Education at the University of Minho. As areas of interest, teacher training stands out; others include Didactics of Mathematics and the use of technological materials in mathematics teaching and learning activities. In his professional activities, he teaches students in the Degree in Basic Education and in the Master's Courses of Teaching in Mathematics in Basic Education and in Secondary Education, guides the pedagogical training of future Mathematics teachers and guides doctoral students in the area of Educational Sciences (Mathematics Education).