1
VOCABULARY PROFILE OF ENGLISH TEXTBOOKS USED IN
SENIOR HIGH SCHOOL
Abstract
The main purpose of this study was to investigate the vocabulary profile of English textbooks used in senior high school. The sample was selected from textbooks English for a Better Life grade 10,11, and 12. To analyze the data, 50% of reading texts were taken from each textbooks. The analysis was automatically produced by the tool; Vocabulary Profiler. In vocabulary profile, there were four types of word frequencies, such as high frequency, low frequency, academic vocabulary, and technical vocabulary. In this study, the vocabulary profiler only focused on high frequency, known as K1 Words (1 – 1000 words) and K2
Words (1001 – 20000 words), and academic vocaculary, known as AWL Words. The finding
showed that K1 Words (1 – 1000 words) in grade 10 was 80,10%, grade 11 was 82,30%, and
grade 12 was 79,20%. K2 Words (1001 – 2000) words) in grade 10 was7,10%, grade 11 was
6,10%, and grade 12 was 7,40%. AWL Words (academic words) in grade 10 was 2,50%, grade 11 was 2,20%, and grade 12 was 2,50%.
