Development of a vocabulary instruction model for content and language integrated learning for English language learners in Bangkok

This paper presents a research project on content vocabulary instruction with a focus on the development of a model to improve vocabulary learning in a content and language integrated learning (CLIL) environment. The model was based on Cronbach's (1942) and Stahl and Fairbanks' (1986) theories of vocabulary learning, which emphasise a progressive approach starting at a basic level, then moving to an intermediate level, and culminating in a productive stage of specific vocabulary. The model also relates to the analysis of classroom discourse which highlights the importance of a student-centred learning approach, where emphasis is placed on encouraging students to progress more at their own pace and in their own time rather than the circumstances set by the teacher (in light of concerns over the amount of and frequent use of content vocabulary) while studying major theories in content-area studies.