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CHAPTER II REVIEW OF RELATED LITERATURE
This chapter deals with some basic theories related to the study. It consists of General Concepts of Teacher, Definition of Terminology, General Concepts of
International Level School SBI, English as a Medium of Instruction, SBI Design Class, Teaching and Learning Process, Teacher in SBI Class, and The Goal of SBI
Program.
2.1 General Concepts of Teacher
Teacher is one of main parts in class. He has certain roles in the process of teaching and learning. The following are some explanations about teacher’s
definition and the roles of teacher in general.
2.1.1 Definition of Teacher
One of the important components in teaching and learning activities is teacher. Teacher guides his or her students and helps them to learn something. In the past,
people defined teacher as a person who is always right and knows everything. People may also define teacher as the one who imparts knowledge. Actually,
teacher has a certain job; he designs and organizes learning activities, and then
gets out of the way so that students can go about their business of communicating and learning Kern, 2000: 307.
Moreover, a teacher means a person who, in a school, undertakes duties that include the delivery of an educational program or the assessment of student
participation in an educational program. Gay 2000 also states that “teachers are cultural organizers, cultural mediators, and orchestrates of social contexts for
learning”. Hence, teacher does not only help students to learn, assesses their work, and guides them but also introduce them a culture.
Teachers must have the ability to communicate effectively. Teachers should be able to recognize students with learning difficulties. It is also important for
teachers to be able to listen and comprehend well. In order for teachers to share their knowledge with others, they must be able to fully understand all the ways to
present the materials to the students. This only can be done through effective communication and comprehension.
2.1.2 Roles of Teacher
