Improving Students' Undersetanding of Passive Voice of Simple Present Tense by Using Contextual Teching and Learning: A Classroom Action Research at the Second Grade Students of Madrasah Aliyah Al-Khairiyah Jakarta Selatan

This study is categorized as the Classroom Action Research (CAR) done to 40 students. The Writer used the Kurt Lewin�s design consisting of four phases: planning, acting, observing, and reflecting. Meanwhile, the data were derived from the tests (pretest and posttest), interview, and observation. The results of the study showed that there was improvement of the students�understanding of passive voice of simple present tense. Most of the students gradually gained good score at the end of each cycle. The score of Minimum Master Criterion- Kriteria Ketuntasan Minimal (KKM) of English lesson was 70 (seventy). The students� mean score in preliminary study was 48.63. the mean score in the first cycle was 63.50. the mean score in the second cycle was 76.88. Besides, it showed that there were 45% students participation actively in the first cycle and 82% students participation enthusiastically in the second cycle. The class condition during teaching learning process was quite good. In addition there was a positive response from the students and the English teacher about implementing the action. In conclusion Contextual Teaching and Learning can improve students� understanding of passive voice of simple present tense and it can increase students�participation