Reading is one of the English basic skills that should be mastered by the students. Therefore in reading, the students should comprehend the text during the process of reading. In this case, some EFL (English as a Foreign Language) students were faced some problems during reading. Some students are difficult to comprehend the text because they failed to link new information with their knowledge. The other factor is the teacher is not using appropriate and effective strategy. In this study the researcher use KWL charts. This study was designed to know students’ reading comprehension before and after being taught using graphic organizer at the tenth grade of SMK TI Pelita Nusantara Kediri Academic year 2018/2019.This research was aimed to improved students’ reading comprehension of SMK TI Pelita Nusantara Kediri academic year 2018/2019. This research is pre-experimental quantitative method, with one group pre-test and post-test design. The result showed that the t-score is higher than t-table in the level of significant 5% (2,037). The mean of post-test (72, 81) is higher than pre-test (49, 69). It means there is significant effect using graphic organizer in teaching reading comprehension. After being taught using graphic organizer, the students are comprehend the text better. Because graphic organizer is helping the students to link new information with their background knowledge. Furthermore, the teacher can apply this strategy using another genre of the text and choosing another type of graphic organizer that will interest the students.
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