aDepartment of Didactics, Faculty of Philosophy, Literature, and Education Sciences, Department of Mathematics and Statistics, Faculty of Basic Sciences, Technical University of Manab?, Manab? 130101, Ecuador/Graduate School, State University of Milagro, Guayas 091701, Ecuador
bDegree in Educational Sciences, Faculty of Education, State University of Milagro, Guayas 091701, Ecuador
cAdvanced Technology Program in Taxation, Paulo Emilio Mac?as Higher Technological Institute, Portoviejo 130101, Ecuador
dProfessionalization program for basic education and bilingual intercultural education teaching careers, National University of Education, Canar 030102, Ecuador