This course is designed to give students knowledge of how language is acquired. This course helps the students understand the stages in acquiring a language and its implications of human biology and psychology to language acquisition; the methods, goals, and approaches for investigating SLA as well as the theories and assumptions; learners‘ learning and metacognitive strategies; the differences between natural second language acquisition and classroom second language development; the model of classroom language development; and the metalinguistic awareness in second language acquisition. Additionally, the course facilitates the students to be aware of the trends of recent SLA research and their implications on language teaching. Moreover, this course also discusses problems in acquiring a language due to physical and psychological aspects. Lecture activities are carried out through group presentations, discussions, and workshops of application of SLA in English language teaching. This course uses Case Method Learning.