Internationalisation in Higher Education and English as a teaching and learning tool: what are the implications in all Brazilian Education?

It is evident that there is no language better than other, however English seems to be necessary if people want to dialogue and take part in the global knowledge and civilization. This article has the aim to discuss about having English as a Medium of Instruction (EMI) in Higher Education, when there are implications about learning and teaching English in all Brazilian Education. For this, the methodology of this study is qualitative, considering publications in this thematic and focusing on debate considering two subtitles: Higher Education teaching in English as Medium of Instruction (EMI) - learnings and challenges; and, when the university internationalisation is affected by implications in all Brazilian Education. In this way, the debate has to be set up in all levels of Brazilian education because the English language knowledge taught at Brazilian Basic Education does not fit to the students’ needs when they are going to Brazilian universities to have disciplines mediated through English. It is necessary to study, in future investigations, if people from Brazilian institutions are really assuming the internationalisation and if this situation brings more quality and learning possibilities to all Brazilian education.