The Effect of Using Iconic Gestures for Vocabulary Learning of the First Grade Students at MTs Muhammadiyah Sibatua Pangkep

This research aims to describe and analyze the teacher’s utterances about the code-mixing used and what factors influenced them to mix their languages. In answering these problems, researchers used a sociolinguistics approach. This research is classified as quantitative research; the data was collected by observation, documentation, and questionnaires, and analyzed using document analysis of the teacher's utterances. The researcher found, that the formulation related to type code-mixing, shows 240 code-mixed data by the teachers i.e.: insertion and alternation. The type of code-mixing most often appears on insertion was the insertion of a phrase (45.8%) followed by the insertion of the word (40.0%). Insertion of hybrid (8.3%) next, alternation (3.7%) and the last one was the insertion of repetition (2.0%). The factors that highly influence the teachers' code mixing used are bilingualism (83, 33%), vocabulary (81.25%), speaker partner (76, 04%), social community (72, 91%), situation (66,66%) and prestige (50%).