Science and Education Publishing American Journal of Educational Research 2333-4770 2 12C 2014 12 14 Preface 0 0 EN Carlos Eduardo de Carvalho Vargas Pontifical Catholic University of Paraná, Curitiba, Brazil EDUCATION2014212C0 10.12691/education-2-12C-0 2014 09 12 2014 12 02 2014 12 14