This document discusses additional challenges that arise in multicultural and multilingual school contexts. It identifies several factors that can pose difficulties, including the school's academic context, conception of education, teachers' attitudes, and conception of language. Barriers mentioned are things like lack of school records for new students, pressure from rigid curriculums, and teachers' fear of linguistic and cultural diversity. The document proposes strategies to address these issues, such as designing a positive attitude towards diversity, supporting students' learning of the common language and maintenance of their home language and culture.