CPU-e, Revista de Investigación Educativa, is a research and development free-access and printing serial, published semiannually in an electronic platform for exclusive consultation through the Internet. Its aim is to disseminate significant progress and results of research carried out in the extensive field of education that constitutes a bibliographic collection of original articles which records both the state of the discipline as well as the previous progress of research. It is also a space for grounded criticism, the debate, the reflection and the analysis on processes of conjuncture, as well as a source of inputs and practical resources, focused on the specific needs of teachers of all levels of the education system. The journal is aimed at national and foreign researchers, of any area of knowledge, mainly Spanish speakers, whose academic interests are within the field of educational research, such as teachers of basic, middle and higher education, graduate students, bachelor's and teacher-training students, officials of the three levels of government whose positions are linked to educational issues.