Communication is a fundamental right recognized in the Convention on the Rights of Persons with Disabilities. People with intellectual disability who have little or no language rarely have opportunities to communicate. The difficulties they encounter, as well as certain characteristics of the environments in which they live, are major obstacles to the development of their communicative skills. The paper documents the methodology used to support the members of educational teams in developing interventions aimed at enabling the persons concerned to improve their communicative skills. A case study details and illustrates all the steps followed in the study. The results highlight the importance of introducing both physical and social facilitators to promote the development of these skills.