According to this theory, the optimal way a language is learned is through natural communication. As a second language teacher, the ideal is to create a situation wherein language is used in order to fulfill authentic purposes. This is turn, will help students to ‘acquire’ the language instead of just ‘learning’ it.
As an SL teacher it will always be a challenge to strike a balance between encouraging accuracy and fluency in your students. This balance will depend on numerous variables including the language level of the students, the context of language use and the personal goals of each student. This balance is also known as Communicative competency.