Task-based language teaching is a student-centered approach to second language instruction. It is an offshoot of the communicative approach, where the activities focus on having students use authentic target language in order to complete meaningful tasks, i.e. situations they might encounter in the real world and other project-based assignments.
These project could include visiting the doctor, making a phone call, conducting an interview in order to find answers to specific questions or gathering information to make a poster or advertisement.
In task-based teaching the focus is not on grammar—is already introduced the students to necessary constructions earlier in the chapter or unit, as well as to the vocabulary, they will need to complete the task—but rather on helping students develop linguistic strategies for completing the assigned tasks within the constraints of what they know of the target language. Because the emphasis is on spontaneous, creativeactions, whether spoken or written, rather than on absolute accuracy, assessment is based on task outcome.