Implication of Functional Discourse Grammar in Teaching

English learning has always been a big issue to be discussed. Many methods have been researched and applied in learning and teaching English so as to achieve the best results. The methods applied in teaching vary from that of teaching and learning four skills to teaching and learning three language areas. In terms of language areas, the most to be paid attention in school, especially in Vietnam, is grammar. Teachers always try their best to help students learn grammar well. However, it seems not to have as much improvement as expected. This paper aims to find a new way and new kind of grammar to teach so that students can improve their grammar not only in school but also in students’ own lives. The paper also gives an example of a grammar lesson from grade 10 textbook and shows how grammar is used in class in a new way.