%0 Generic %A Arifin, Korry Yulidha Hapsari %C Universitas Lampung %D 2013 %F eprints:1105 %I Fakultas KIP %T IMPLEMENTING CLUSTERING TECHNIQUE IN TEACHING VOCABULARY AT THE FIRST GRADE OF SMAN 1 NATAR %U http://digilib.unila.ac.id/1105/ %X Vocabulary is one of the problems confronted in English language learners. Because of the limited vocabulary, the learners cannot communicate to others clearly. Then it is important for the students to learn vocabulary through Clustering Technique that can help them to enrich their vocabulary by developing the core words given. The objectives of this research are to determine whether there is significant increase on students’ vocabulary achievement through Clustering Technique, to investigate what is the most interesting topic, and to investigate the problems faced by the students who are taught vocabulary through Clustering Technique. This research was conducted at the first grade of SMAN 1 Natar. The reseacher took class X1 as try out and class X2 as experimental class. The experimental research with one way anova design was applied in this research. In collecting the data, pre test, treatments, post test, daily tests and questionnaire were administered. Then, the T-Test was used to determine the significant value. The result of the research proves that Clustering Technique has effect on students’ vocabulary achievement. It can be seen from the mean score of the students in pre test and post test. In pre test, the mean score is 44.05 and it becomes 73.61 in post test. It means that there is an increase of 29.56 points. The result of t-test shows that t-ratio is higher than t-table (39.134> 2.042) with the level of significant is p < 0.05 and significant two tail is p=0.000. It can be said that Clustering Technique is approriate to be used to increase students’ achievement of vocabulary, especially noun, verb, adjective, and adverb. Keywords : clustering technique, vocabulary.