1. Faculty of Education, Department of Linguistic and Literature Education and Didactics of Experimental Science and Mathematics, Section of Didactics of Mathematics, Universitat de Barcelona, 08035 Barcelona, Spain
2. Faculty of Education, Department of Didactics, Universidad Católica de la Santísima Concepción, Concepción 4030555, Chile
3. Faculty of Education, Department of Psychology and Family, Universidad Finis Terrae, Providencia 7500000, Chile
4. Faculty of Education, Department of Specific Didactics, Universitat de Girona, 17004 Girona, Spain