Communicative, content-based. And task- based instructional environments also involve learners whose goal is learning the language itself, but the style of instruction places the emphasis on interaction , conversation and language use rather than on learning about the language , the topic that are discussed in communicative and task-based instructional environments are often of general interest to the learner, for example, how to reply classified advertisement from a newspaper. In content-based instruction, the focus of a lesson is usually on the subject matter, such as history or mathematics, which student are learning through the medium of the second language .in these class the focus may occasionally be on the language itself, but the emphasis is on using the language rather than talking about it. The language that teacher use for teaching is not selected solely for the purpose of teaching a specific feature of the language ,but also to make sure learners have the language they need to interact in a variety of contexts. Students’ success in these-courses is often measured in terms of their ability to ‘get things done’ in the second language rather than on their accuracy in using certain grammatical features.