The aim of this article is to include Subtitling for Deaf and Hard-of-Hearing audiences (SDH) as a transversal competence in the teaching-learning of French-Spanish Technical-Scientific Translation, to implement a didactic proposal that will help students to consolidate and expand the competences required by this branch of the discipline. To this end, the author aims to familiarise students with real working dynamics in the field of subtitling for deaf and hard-of-hearing people by using simulated collaborative translation assignments in which students act in assigned roles, and which serve to raise practical issues of the labour market in audiovisual translation and accessibility applied to the context of technical-scientific translation.