Task-based language teaching (TBLT), also known as task-based instruction (TBI), focuses on the use of authentic language and on asking students to do meaningful tasks using the target language. Such tasks can include visiting a doctor, conducting an interview, or calling customer service for help. Assessment is primarily based on task outcome (in other words the appropriate completion of real world tasks) rather than on accuracy of prescribed language forms. This makes TBLT especially popular for developing target language fluency and student confidence. Task-based language learning has its origins in communicative language teaching(CLT), and is a subcategory of it.
A task is an activity which requires learners to use language, with emphasis on meaning, to attain an objective.
There are six principles teacher can follow when design tasks:
(1) A task should have a clear purpose.
(2) A task should have some degree of resemblance to real-world events.
(3) A task should involve information seeking, processing and conveying.
(4) A task should involve the students in some modes of doing things.
(5) A task should involve meaning-focused use of language.
(6) A task should end with a tangible product.