Abstrak
This research conducted to the students were often confused if they were given some materials or instructions which stated in English. The teacher should repeat or switch the materials or instruction to Indonesian in teaching and learning process, She assumes it will give more understanding for students about what are the teacher trying to convey. Based on that interview at a junior high school is difficult to teach English and challenging. Even though they have learn English since Elementary School, but some students still have low understanding of it. To overcome this problem the teacher initiated to use code switching as a strategy. This research was a survey research. The population of this study were the students in grade VIII of Ashhabul Yamin Lasi, VII.7, and VIII 8. The total of sample are 60 respondents. The researcher used total sampling because the population are less than 100 students. Instrument of this research was questionnaire which consisted of 33 items. The researcher did the validity instrument through three experts. In analyzing the data, the researcher used quantitative descriptive analysis. Total percentage of data analysis was code switching used by English teacher based on the percentages that show on the Lectures code switching practices 86,11 %, students perception towards teachers code switching 84,28 %, students' comprehension due to teachers code switching 79,15 %, students opinion about teachers code switching rationales 87,17 % of Google Translate in translation class.