Review of Related Studies

12 c The purpose of feedback There are five purposes of feedback according to Lewis Lewis, 2002: 3,4: 1. Feedback provides information for teacher and students By focusing on the strength and the weakness of the performers, feedback gives information about the i mprovement of the students’ performances to the teacher and also the students themselves. 2. Feedback provides students with advice about learning Teacher can give comment based on the students’ performances. The teacher do not only give them some comments, teacher also can use journal to give some advices to the students. 3. Feedback provides students with language input Teacher can use feedback to give the students language input. Teacher gives the feedback, it can be written or oral, using English language that higher than what the students’ own current language use. It may help students to improve their vocabulary. 4. Feedback is a form of motivation Feedback helps students to encourage themselves. It motivates students to study and use language to the best of their ability by taking into account whatever the teacher knows about the learners’ attitudes. 13 5. Feedback can lead students towards autonomy This is the long-term purpose of feedback. Teacher can lead the students to the point where they make the mistakes. Teacher gives the students to think about the mistakes and revise their mistake. Mostly feedback only focuses on the errors of students performances. Giving feedback is not only about giving some comments of the mistakes from students. As what Lewis says that feedback is not limited to commenting errors. One of the purposes of giving feedback towards the student s’ performances is to motivate the students. It is good for students to know what the good things that they have done during their performances. It is important for the students to motivate them to be better in their next performance. Lewis 2002 also says that it is important for the students to comment on their ability to express meaning despite incorrect form of the language. Lewis 2002 explains that there are three types of feedback based on the source of the feedback. 1. Teacher feedback In some situation, teachers are the source of feedback. They give feedback of the students performances orally and written. Teacher feedback has some variation. There are some variations of teacher feedback: traditional marking, conferencing, collective feedback. 2. Peer feedback The idea of peer feedback is that the students give the feedback of one to another. In the first time, peer feedback is something strange because some