Teaching and learning English in a multilingual classroom : A study of code-switching in an EFL/ESL teaching/learning situation

Abstract: This paper aims at finding out if code-switching is an asset or a problem in a multilingual classroom. The main goal of the study was to find out what impact code-switching into mother tongue has on L2 development and what learning/teaching situations induce the act of code-switching. Through classroom observation, interviews and a questionnaire data were collected and the main questions of the study answered.Previous research and the results from the present study show that code-switching is a natural phenomenon in L2 development and that code-switching has a positive impact on L2 development as it fulfils a significant number of functions in the classroom, including vocabulary and concept development, need for clarification and emphasis, provides a learning strategy for L2 acquisition, and generally helps students maintain and develop their L2.