The Readability of Students’ Textbook Used in Semantic and Pragmatic Course in English Education Department of UNP.

Many students got a low score in Semantic and Pragmatic course. They complained that the textbook used in the course is difficult to understand. It is possible to consider that there is a correlation between the students‟ bad scores and the readability of the textbook. In previous research, it found that a suitable level of readability and reading skills is an important consideration to reach maximum learning gain. Because of that, it becomes important to measure the readability level, the factors influencing the readability level and the best way to use the textbook. This research was a descriptive quantitative research. The sample of this research was 3 pages from 3 chapters of the textbook, chapter 9, 10, and 11 chosen randomly from each chapter. The instruments were a written questionnaire, an online readability measurement website, and notes during the interview. The findings show that the readability level measured by students and readability formula was difficult. The most influencing factors in determining the readability level were interest and vocabulary difficulty. The best way to use the textbook was by using one single textbook, editing by put some notes on the page, then presenting it in a lecture form by the lecturer.