This paper describes and analyses the dynamics of the use and/or mastery of Virtual Learning Environments (VLEs) by educators and students Open University, important part of the Brazilian Educational System. A questionnaire with 32 items was answered by 174 students/instructors/coordinators of the Media in Education and Physics courses, of two federal universities, between 2011 and early 2012. The interview with a coordinator was transcribed and related to the data systematised in tables and graphs. Interpretative analysis, in an open dialogue with the references and with the data from the Universidade Aberta do Brasil (UAB-Open University of Brazil) site resulted in the final considerations. These suggest that the use and/or mastery of VLEs by students are important, and the specificities of these uses subsidise studies and publications, still in a small number in the literature in this area of knowledge. The work reflects the development of the Open Distance Education System, conducted with strong popular participation, as a response to the challenge posed to the educational policies for expanding the public provision of higher education, also using VLEs for this purpose.