The aim of the research described in this article, which is an example of action research, is to contribute to new curricular and professional definitions based on a systematic analysis of the possibilities and limitations that arise when working with the intercultural dimension of foreign language classes for adults. Additional sources for recommended reading are provided. [A Spanish version of this chapter is also included in the book. For the complete volume, "Qualitative Approaches to Research on Plurilingual Education," see ED573580.]