We believe that machine translation (MT) must be introduced to translation students as part of their training in preparation for their professional life. In this paper, we present a new version of the tool called MT3, which builds and extends on a joint effort undertaken by the Faculty of Languages of the University of Córdoba and the Faculty of Translation and Interpreting of the University of Geneva to develop an open-source web platform to teach MT to translation students. We also report on a pilot experiment with the goal of testing the viability of using MT3 in an MT course. The pilot allows us to identify areas for improvement and collect feedback from students on the tool's usability.