Topic: "Knowing a language is not just a matter of having grammatical...

Topic: "Knowing a language is not just a matter of having grammatical 'competence' ........ We have seen that we also need to add communicative competence - that is the understanding of what language is appropriate within certain situations."
Is there any place for teaching grammar in a formal manner? Give reasons for your answer and include a discussion of what you mean by ‘a formal manner’.