English Medium Instruction (EMI) has been defined as 'the use of the English language to teach academic subjects (other than English itself) in countries or jurisdictions where the first language (L1) of the majority of the population is not English' (Macaro, 2018, p. 19). This definition has proved to be controversial but has underpinned the work…

In virtually every research paper on this topic we come across we read that, in the particular context that the writer is operating, English as a medium of instruction (EMI) is on the increase. But what exactly is EMI? If we consider every classroom around the world in which learners are exposed to English language as their second language (L2) we…

For many decades, foreign language teaching has been dominated by the principle that teachers should use only the target language (TL) and avoid using the mother tongue (L1) except as a last resort. However, reports show that teachers make extensive use of the L1. This paper illustrates this discrepancy and considers some main reasons for it. It…