This course aims at providing general view of the field of language acquisition including first language acquisition and second language acquisition, the role of learners' individual factors, interlanguage, and the role of formal education. Therefore, this course will give insight of what to teach and how to teach to potential Korean language teachers in their classes of Korean as foreign language. The course will be delivererd mainly in English online, but Korean will be used in off-line class meeting. This course will offer 10 online lectures up to the schedule; therefore, off-line class meeting will take place once a week. 30% of the whole course contents will be in English and also in the tests.