English Vocabulary List for Grade 10 Thai Students

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Monsinee Namchan


There is no availability of English vocabulary list for Grade 10 students in Thailand. This study, therefore, aimed: 1) to clarify English vocabulary expectation of Grade 10 defined in the Basic Education Core Curriculum B.E. 2551 (A.D. 2008) and 2) to create an English vocabulary list for Grade 10 students. Five steps adopted in obtaining the list were: 1) clarifying the vocabulary expectation of Grade 10, 2) gathering running words from three samples of English course texts of Grade 10, 3) identifying the total running words with New General Service List (NGSL) through AntWordProfiler for the first list, 4) validating the first list by three English experts of Grade 10 to confirm the appropriateness of words and ranks and 5) creating the final list. From analyzing of 89,288 running words, it was revealed that 2,023 word families were found in three sample texts and only 1,123 word families obtained at least six repetitions, although Grade 10 expectation is 2,600-2,750 words. The remaining words of NGSL and words with lower than six repetitions, therefore, were validated by experts and added to the list in order to meet the expectation. Implications of the 2,780 words of Grade 10 vocabulary can be made for use in pedagogy and research.

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