Swediasari Levina Hafizhah. An Analysis of the Use of Code Mixing and Code Switching in the Teaching and Learning Process by Teachers in the International Class.Thesis. Department of English Education Muhammadiyah University of Ponorogo. Advisor: (1) Dr. Diyah Atiek Mustikawati, S.Pd. M.Hum. (2) Dr. Elok Putri Nimasari, M.Pd.
Keywords: Code-switching, code-mixing, international class program.
The aims of this study are to: (1) identify the types of code switching and code mixing used by teachers in the learning process in international classes, (2) describe the
factors that influence teachers in the use of code switching and code mixing in the learning process in international classes, and (3) analyze the impact of teachers' use of code
switching and code mixing on students' understanding of learning materials. This study uses a qualitative descriptive method. The research subjects include an 8th grade International Class Program English teacher and a 9th grade ICP English teacher at MTs Negeri 2 Ponorogo. The data collection techniques used in this study included observation, interviews, and documentation. Observations were made by recording everything the teachers said and processing it into transcripts. The instruments used in this
study were interview guidelines and audio recordings. The data analysis techniques in this study were data reduction, data display, conclusion drawing, and verification. The results show that teachers used 26 utterances of code-switching and codemixing. This consisted of 10 instances of code-switching, including 1 intra-sentential switching and 9 inter-sentential switching. The researchers did not find tag switching. Meanwhile, in code mixing, 16 utterances were found, including 4 insertion, 8 alternation and 4 congruent lexicalization. In addition, there were 3 main factors that influenced the use of code switching and code mixing by teachers in English teaching and learning: (1) talking about particular topic, (2) repetition for clarification, and (3) lack of vocabulary. The use of code switching and code mixing by teachers can help students understand the
learning material.