In the current age of communicative language teaching, whereas some language teachers and learners suppose that grammar is not really essential for communication, other scholars agree that grammar still plays an important role in developing the language system of learners. The propensity of this study is to define what grammar is and what it is good for. From the recent perspectives and findings of different researchers, a critical evaluation is conducted to explore the importance of grammar in

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... language teaching and learning as well as how to effectively apply grammar instruction into language teaching. The findings show that grammar is beyond a set of rules or structures and having knowledge of grammar can support learners to enhance their EFL learning progression. Keywords: grammar, teaching grammar, grammar instruction, language instruction