Prof. Christof Schreiber from the Justus-Liebig-Universität Giessen gave the conference ‘Semiotic Analysis of Collective Problem-Solving Processes Using Digital Media’ (in Spanish, ‘Análisis semiótico de inscripciones matemáticas’) invited by Prof. Teresa F. Blanco (leading EAMARE-STEAM project). The conference was held in María Barbeito room, Faculty of Education, University of Santiago de Compostela (USC) on April 23, 2019.
