In this paper, we aim to present research results and proposals for practice put forward by members of the Partner Nucleus of Belo Horizonte and Region, affiliated to the National Project for Teacher Development in the Theories of New Literacies and Multiliteracies, coordinated by Prof. Walkyria Monte Mór and Prof. Lynn Mario Trindade Menezes de Souza. First, we will do a quick retrospective of the area of teacher education and discuss issues related to critical language teaching, since these have been the focus of the research carried out by the nucleus. Then we will discuss research and practices carried out by core members involving pre-service teacher education, inservice teacher education and language teaching from the perspective of education for ethnic-racial relations, seeking to develop a sense of responsibility for critical issues in our society. In all three cases, research and proposals were always carried out within the critical perspective for language teaching, a perspective adopted by the National Project. Finally, we conclude the text by arguing that teacher development programs need to create spaces for teachers to rethink their practices and develop new attitudes and perspectives that enable them to act critically by building less unjust and less unequal societies.