The research underpin this thesis aimed to analyze possible links between media literacy of teachers and their pedagogical practices in emergency remote education (ERE) during the Covid-19 pandemic. In the absence of consensus around a conceptual model for media literacies, a proposal was built in dialogue with authors in the field of media education and critical studies on technology and education, adopted as an analytical lens of the data produced in this research. The field work consisted of two stages: a) application of a questionnaire with teachers from different regions of the country; b) conducting semi-structured interviews with teachers who answered the questionnaire and agreed to participate in this stage as well. The 259 valid responses were submitted to descriptive and association analysis using the chi-square test. The interviews carried out with 32 teachers sought to understand how they conceived media literacy; what skills they considered to have in this area and whether there were links between media literacy and the pedagogical practices employed in emergency remote education (ERE). In the responses to the questionnaire, most teachers who were taking the ERE stated that they were quite skilled with regard to the use of media in teaching. In the interviews, the participants reported that the ERE experience provided them with greater knowledge about the pedagogical use of the media, which possibly favored the feeling of more competence in this area. The analysis of the interviews indicated that most of them conceive media literacy as the use of media for instrumental purposes (such as technical skills) and didactic purposes (for teaching curriculum content). Concerns related to surveillance and control of teaching work and concerns about privacy and public exposure were identified. The interviews also indicated that knowledge about pedagogical applications of the media was mainly built on exchanges between peers. Considering the experience with the ERE, it is proposed that training policies aimed at expanding the media literacy of teachers include a critical understanding of the functioning of media systems and their social, economic, cultural, political and historical aspects. This action shall be structured out of teachers networks, based on the exchange of knowledge.