The purpose of this study was to investigate the teacher’s strategies on teaching English vocabulary at Eight Grade of MTsS Siulak Gedang. There are two problems that going to be discussed in this thesis those are: (1) what are the teacher’s strategies in teaching vocabulary at the Eight Grade students of MTsS Siulak Gedang, (2) why does the teacher apply the strategy teaching vocabulary at the Eight Grade students of MTsS Siulak Gedang. In this study, the researcher used a qualitative approach with descriptive research design to address these problems. In collecting the data, the researcher used some techniques, namely (1) observation, (2) interview, and (3) documentation. In analyzing the data, the researcher used some techniques namely: (1) data collecting, (2) data reduction, (3) data display, and (4) conclusion/verification. The subject in this study was an English teacher Based on the analysis of an interview. From the research finding, (1) It is shown that both of the English teachers of MTsS Siulak Gedang used translation strategy and dictionaries strategy to their class in teaching vocabulary to the students. (2) the reasons why teachers use the translation strategy and stated that the strategy was suitable in teaching vocabulary to the students. The first teacher said that the reasons she applies the strategy is because many students are difficult to understand the text in English, so translation strategy and using dictionary strategy can help them in understanding the vocabulary better. The second teacher also agreed applying the translation strategy is good because the students can understand the text and they can do the exercises after the students together with the teacher translate the text together. Whether the teacher explains to them, or the teacher asks them to check the difficult words on their dictionary. Based on the result of the research can conclude that strategies used by English teachers at eighth grade of MTSS Siulak Gedang in teaching vocabulary are translation strategy and using dictionary strategy. These strategy are used by the teacher because they are appropriate to use in MTSS Siulak Gedang. Finally researcher suggested the use of a translation strategy and using a dictionary strategy in teaching vocabulary and of course by utilizing other supporting media
