The medium of instruction significantly affects students' learning processes as it influences comprehension and engagement. A familiar language enhances understanding of concepts, allowing for better communication of ideas and critical thinking. When students are instructed in their native language, they are likely to perform better academically, as they can express themselves freely and connect with the material. Conversely, a language barrier can lead to confusion and hinder participation. Moreover, the medium can shape cultural identity and impact motivation. Hence, recognizing the importance of an appropriate medium of instruction is essential for optimizing student learning outcomes.