Applied Linguistics course is an optional course offered for the fifth semester students of English Education Department of Universitas Ahmad Dahlan. This course equips the students with sufficient knowledge on how to implement linguistic theories in language teaching practice. In this course, the students will learn the role of linguistics for teaching English, the use of linguistic-based concept/product (i.e., corpus) in teaching English, the influence of L1 and/or L2 to the learning of foreign language (i.e., English). At the end of the course, the students are expected to be able to teach English and design English teaching materials using linguistics insights.