摘要：This study examines the students' and teachers' attitudes to the use of L1 in EFL classrooms at a Korean School in Vietnam. Little research has been done on English language teaching in multilevel language classrooms in the Asian context. The study employed questionnaires, interviews and observations to obtain the participants' attitudes to L1 use in three different settings, beginners, intermediate and advanced students. The findings suggest that L1 plays a supportive role in the language classroom, especially in the early stages, and more significantly in reading and writing. Korean students agreed with Korean teachers about the usefulness of L1 while native speaker English language teachers emphasized the importance of using L1 exclusively. L1 was found useful for explaining the meaning of words and grammar explanations but inappropriate in pairwork and groupwork activities. The paper provides recommendations for successful L1 use in multilevel classrooms and suggests that more research is required to shed light on the success of L1 use in multilingual and multilevel language classrooms.
关键词：mother tongue; teacher attitudes; student attitudes; classroom language
