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CHAPTER II REVIEW OF RELATED LITERARURE
This chapter contains theoretical description and theoretical framework. It consists of theories which are used as the guidance in conducting this research.
A. Theoretical Description
Theoretical description part consists of three parts which are Lembar kerja siswa, evaluating the textbook, and LKS requirements.
1. Lembar Kerja Siswa LKS
A book gives a very big contribution in the process of teaching and learning English language in class. Sheldon as cited in Garinger 2001 says that there are at
least three main reasons why the teachers use book in class. First, developing their own material in class is very difficult for the teacher. Second, the teachers have
limited time to develop new materials. Third, it is because of many external pressures that torture the teachers.
Ansary 2002: 2 says that another reason why the teachers need to use the book is there are many teachers who still lack in experiences feel that book means
safety, guidance, and help. The advantage of using a media, in this case is an English textbook is not only felt by the students but also the teacher. The lessons are
presented in good orders. It helps the teachers to deliver the lessons to the students in a good sequence.
9 In order to succeed in the process of teaching and learning English language
in class, the school needs to use another supporting media. Another supporting media is expected to maximize the process of learning in class. LKS becomes one of several
options because by using the LKS students get more exercises and they can practice their English skills. It is strengthening by Beeby 1982, he suggests that the school
should not only use textbook if the students are taught to develop their mind and way of thinking. Using textbook is important, but it is just not enough.
The usage of the media such as LKS is helping the students to practice their English skills independently. School is not the only place where the students have to
learn. LKS is a very helpful media which can be used even in home. It is supported by the fact that LKS provides a lot of exercises which can be used by them in order to
recall the memory about the lesson that they get in class. It is exactly the same with the statement by Devi 2009 LKS is the compilations of many sheets contain some
tasks to be done by the learner. The LKS is usually being equipped with the summary of the lesson and also the instruction about how to work on the exercises provided.
According to Arsyad 2004 there are some functions of using media to the process of learning, they are:
1. Delivering the message become clearer so that it may help the process of
learning and also it may help improving the result of the learning. 2.
To improve students’ motivation. 3.
It may overcome the shortcoming in the sense limitation, time and space.
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