The role of Discourse Analysis (DA), which is important in teaching and learning language, is discussed in this paper. DA allows researchers to analyze speech and writing, shedding light on the social structures, power dynamics, and cultural contexts through which classroom lives are enacted. The presentation introduces DA and its theoretical bases and then discusses its educational use. Research has found that DA improves teaching through critical thinking and differentiated instruction. For example, it shows how specific classroom communication patterns and student engagement can stack up to improve outcomes. Through case studies, the paper presents practical insights into how DA shapes curriculum and pedagogy that includes students’ linguistic backgrounds. Finally, it concludes by asserting that incorporating DA into language classrooms fosters effective communication and cultivates the critical thinking skills necessary to navigate global interactions in a diverse society.