Autor: Daniel Clark Orey

Dr. Milton Rosa earned a Masters’ degree in 2001 and a Doctorate degree in 2010 both in Education from California State University in Sacramento. He also earned a post-doctorate degree in Education from Universidade de São Paulo and his studies focuses on ethnomodelling research, which is the connection between ethnomathematics and mathematical modelling. He has published papers and articles in national and international journals, chapter books, and books in Portuguese, Spanish, and English. He joined conferences and symposia in international and national levels with contributions of plenaries, round tables, communications, and posters. He also has supervised numerous master theses in the area of Mathematics Education. In 2010, Dr. Rosa was awarded the Dr. Carlos J. Vallejo Memorial Award, in the area of Multicultural and Multiethnic Education (MME), in the Special Interest Group (SIG) in the American Education Research Association (AERA) for his contributions in the area of cultural diversity in Mathematics Education. Dr. Francisco Cordero, Ph D, is a Senior Researcher in the Department of Educational Mathematics of the Center for Research and Advanced Studies (CINVESTAV) and Coordinator of the Higher Education Area. He earned his Ph D in Mathematics Education at CINVESTAV and postdoc at Purdue University, Indiana, United States. Dr Cordero»s research topics are the socio-epistemology theory of educational mathematics, categories of the use of mathematical knowledge of people, mathematical modelling and transversality of knowledge, training and professionalization of the teacher in mathematics and the socialization of the science. He is a member of the National System of Researchers (SNI), the Mexican Academy of Sciences (AMC) and the Latin American Committee for Educational Mathematics (Clame). He has trained researchers for several generations: he has supervised a little more than 62 master»s theses and 22 doctoral theses. He has published a hundred articles in prestigious magazines, as well as twenty books and chapters in prestigious publishing houses. Due to his academic leadership, he has given a hundred conferences at universities in different countries: Argentina, Brazil, Colombia, Chile, Cuba, Guatemala, Honduras, Mexico, Panama, Dominican Republic, Uruguay, United States, Spain, France, and Turkey. Dr. Daniel Clark Orey, Ph.D. is Professor Emeritus of Mathematics and Multicultural Education at California State University, Sacramento where he served from 1987 to January 2011. Dr. Orey graduated from Oregon State University in 1978 and taught in Oregon and in Guatemala. He earned his Ph.D. in Curriculum and Instruction in Multicultural Education at the University of New Mexico in 1988. His masters work took him to Patzun, Chimaltenango in Guatemala where he did field research with Logo, computers and Mayan children. In 1998, at the invitation of Professor Ubiratan D»Ambrosio, Dr. Orey served as a Fulbright Scholar at the Pontifícia Universidade Católica de Campinas in Brasil, which he conducted research in classrooms and taught courses in ethnomathematics and mathematical modeling. In 2007, Dr. Orey served as Senior Fulbright Specialist in Kathmandu University, Nepal, giving lectures on topics related to mathematics education and teaching on Ethnomathematics and Modelling. He is currently professor of mathematics education in the Departamento de Educação Matemática and in the Master’ Degree Program in Mathematics Education at the Universidade Federal de Ouro Preto, Brasil. Pablo Carranza carried out master»s and doctorate studies in Mathematics Didactics at Denis Diderot University in France. He has worked as a mathematics teacher in rural, urban, public and private schools. He is currently a research professor at the National University of Rio Negro. There he conducts research on projects in real context as a framework for learning disciplinary concepts. In this context, he directs both research and extension projects aimed at real problems in the community.