EMI is a complex pedagogical approach which comprises the use of language and content-based instruction. For EMI(English as a Medium of Instruction)  courses, the delivery of content, whole-class interaction, the learning materials, and the demonstration and assessment of learning outcomes (such as oral presentation, assignments, or tests) should be in English (a universal language).In certain situations (such as group discussions), students enrolled in the course may interact with each other using their native language (such as Mandarin, Taiwanese, Hakka, Indonesian, French, etc.) to facilitate creative thinking or consensus building. However, students should be asked to present their discussion outcomes in English. Subject courses conducted using EMI teaching methods should encourage the students to concentrate much more on their interpersonal communication skills (speaking and writing) in their academic field.

According to《NCHU Classification Criteria for English-taught Courses》,there are mainly four types of English-taught courses offered to meet different learning goals (please refer to the chart below).