for example, for the learning outcome 'students will be able to describe the tourist attractions in their hometown, the instructional activities employed in a CLT lesson will be different from those in a TBI lesson. In CLT lesson, the instructional activities may include information gap activities that create the needs for communication when one student has the missing piece of the information. the two students then need to converse to fill in their understanding about the place. in TBI lesson, the teacher may plan to use a task requires the students to create a poster that introduces one tourist attraction in their hometown . this lesson may be run over a course of two weeks when the students are required to research on the information about the places in their hometown before the productiono of the poster