Improving students? understanding in using passive voice of the present and past tense through Contextual Teaching And Learning (CTL): a classroom action research at eleven-grade SMK Kesehatan Bina Insan Cendekia Karawaci

This study was carried out to improve students? understanding in grammar, especially passive voice in present and past tense through Contextual Teaching Learning (CTL) in the second year of SMK Kesehatan Bina Insan Cendekia Karawaci academic year 2012/2013. The subject of this study consisted of 30 students at eleven-grade. Classroom Action Research (CAR) was the method used. The Classroom Action Research is a collaborative designed. Therefore, the writer collaborated with the English teacher as the observer and collaborator. According to Kemmis and Taggart, the study conducted in two cycles that consisted of planning, acting, observing, and reflecting in each cycles. The data of this study gathered through qualitative and quantitative research. Qualitative data gathered by analyzing the interview and observation result. Quantitative data were obtained from the students? score of pretest and posttest and questionnaire. The data showed there was improvement in students? understanding in passive voice of present and past tense. The score Minimum Mastery Criterion- Kriteria Ketuntasan Minimal (KKM) of English lesson was 75 (seventy-five). In pretest, most of students could not answer the question well, only 9 students (30%) who passed the KKM with the mean score was 56. Then, in the first cycle the mean score was 65.5 and 16 students (53.33%) who passed the KKM. In second cycle, the mean score was 70.5 and there were 21 students (73%) who passed the KKM. Besides, the questionnaire before Classroom Action Research (CAR) showed that in pretest only 11 students (36%) felt motivated in learning passive voice and 8 students (26%) who satisfied with their English score. Then, the questionnaire after Classroom Action Research (CAR) showed that 23 students (76%) felt motivated in learning English and 20 students (66%) felt the score increased. So, the criterion of success was achieved. Related to the results of the gained data, it can be concluded that the students? understanding in passive voice of present and past tense was improved and the students felt more motivated in learning English