This paper discusses the case study method of instruction and its application to the teaching of English for special purposes in university business schools. Students are given cases adapted to their level that allow them to solve business problems, such as contract negotiations, while improving their English comprehension and communication skills. This method teaches communication, presentation, teamwork, information gathering, and writing skills while introducing students to various fields of business. The teacher's role in the case study approach consists of introducing cases, leading discussions, acting as a resource person, and providing feedback to the students. The approach allows students to explore areas of interest or expertise and is student-centered, thus encouraging students to take responsibility for their success in the course. (MDM)