Grammar is central to the teaching

Grammar is central to the teaching and learning of languages. It is also one of the more difficult aspects of language to teach well.
Many people, including language teachers, hear the word "grammar" and think of a fixed set of word forms and rules of usage. They associate "good" grammar with the prestige forms of the language, such as those used in writing and in formal oral presentations, and "bad" or "no" grammar with the language used in everyday conversation or used by speakers of non prestige forms.