This doctoral research presents reflections and descriptions about the organization, management and application of a didactic proposal for the translation of textual/discursive genres and specialized written texts from Portuguese into Brazilian Sign Language (Libras) text-videos. I align myself to the theoretical, epistemological and analytical perspectives of Translation Theories and Studies, Translation Pedagogies and Translation Didactics. The research objectives are: (i) to investigate the theoretical references of Translation Studies that theme about Translation Pedagogies and Didactics; (ii) to report the construction and application of an extension course for the training of Libras translators from the pedagogical and didactic perspective of translation; (iii) analyze and criticize the pedagogical and didactic proposals for the production of thematic units (subjects) and translation units (translation tasks, by learning objectives and translation competences) built for the translation extension course at INES; and (iv) point out reflections on the pedagogical conception of a translator training course, the production of didactic material and the development of translation learning acquisition and translation competences of deaf and hearing students. The methodology of this research is qualitative, with a focus on applied research and ethnography of translation education. The research generated data at the National Institute of Education of the Deaf/Ministry of Education (INES/MEC), through an extension course for the training of Translators-Interpreters of Libras/Portuguese (TILSP), in virtual format (synchronous and asynchronous), in the year 2022, with a workload of 400 hours. The data present ethnographies of translation teaching, with descriptions, analyses and evaluations (teacher-researcher and listener and deaf students), besides theoretical-practical and pedagogical-didactic reflections on Translation Studies, regarding: (i) organization and management of a course of translation of texts written in Portuguese to text-videos in Libras; (ii) elaboration of 12 disciplinary menus and 58 lesson plans (containing content, objectives, strategies, resources, evaluation and references); (iii) application of 12 thematic units (disciplines), being distributed in 05 modules, with 58 synchronous-remote classes; (iv) application of 70 teaching units, with sequences of tasks (conversational, linguistic, terminological, theoretical and translation) for learning text- video translation in Libras, in addition to self-assessments of students about their performance, the course and teaching materials; (v) complementation of translation teaching, with 77 asynchronous activities as a form of pedagogical learning activities; (vi) meetings of individual and group educational mentoring; (vii) interactions in Libras, in the classroom, with the regular teacher, invited deaf teachers, deaf volunteer tutors and deaf/hearing students; (viii) defenses of text-video translation projects in Libras. The thesis concludes by proposing the incorporation of new translation sub-competencies in the Didactics of Multimodal Text-Video Translation in Sign Languages, such as: interactional sub-competency; translanguaging sub-competency; semiotic sub-competency; and multimodal sub-competency.