L’integrating plurilingualism into education has become a major challenge in an increasingly globalized world. This study explores the impact of language repertoires on the development of learners' intercultural and cognitive skills. Based on theoretical frameworks such as plurilingual and pluricultural competence (CEFR) and Vygotsky’s sociocultural theory, the study analyzes how exposure to multiple languages enhances cognitive flexibility, critical thinking, and social adaptation. Using a mixed-method approach combining questionnaires, interviews, and linguistic interaction analysis, this study analyzes how exposure to multiple recommendations to optimize learning in a multicultural educational context.

Plurilingualism, language repertoires, education, interculturality, cognitive flexibility.