This article summarizes research on how students who are bilingual or learning English use two languages and examines how this research is relevant to mathematics classrooms. It is easy to notice that bilingual students sometimes use two languages. It is more difficult to know whether this practice might be significant to learning mathematics.…

Suggests that code-switching is not only a neurolinguistic process but also a psychological phenomenon with substantial reference to personality structure and dynamics. The bilingual's personality as a "code-switcher" is tentatively defined. (Author/CB)

A paradigm gap has prevented research on second language acquisition theory and indigenized varieties of English from making substantive contributions to each other. The varieties of English represent several significant sociolinguistic and psycholinguistic variables, the investigation of which will put second language acquisition theory on firmer…