Abstract
Knowing and understanding the language of instruction in class is important for the students to get the point of the lesson. This study is aimed to investigate the students’ perceptions toward the use of English as Medium of Instruction (EMI) in Mathematics class. The study used both qualitative and quantitative research. The participants of this study are chosen from 70 students from department Pendidikan Guru Sekolah Dasar Bertaraf Internasional (PGSD-BI), Fakultas Keguruan dan Ilmu Pendidikan (FKIP) of Satya Wacana Christian University, Salatiga, Central Java. The students were investigate by filling the open ended and close ended questionnaires. The findings reveal that EMI is needed to prepare teachers at international schools. Moreover, the students admitted that their grades were better when learning mathematics using EMI. However, they still get difficulties in learning English, so they prefer Indonesian as medium of instruction in mathematics class.
