Bilingual mathematics learners, conceptual mathematical activity and the role of their languages. How best to investigate?

International audienceThe significant role of language in mathematics teaching and learning is not a new phenomenon. Investigating bilingual mathematics learners is complex and research has demonstrated that language switching practices are also complex and involve not only social and cultural aspects, but also cognitive aspects. However, little investigation has been undertaken into the specific role of languages and their influences on conceptual activity at undergraduate level. The framework, and future research directions, presented in this paper aim to investigate further the cognitive aspects of bilingual learners and their use of their languages, when engaged in conceptual mathematical activity