8 1990 propose that “Immersion environment provides ample incentive and
opportunity for learners to acquire both receptive reading listening and productive speaking writing teaching-learning skills.”
In this study, immersion programs will sometimes be referred as international classes as well as content activities. According to Stephen D.
Krashen and Tracy D. Terrell 1983, content activities refer to “learning academic subject matter such as math, science, social studies, art, and music in the
target language.” The major principle of content activities goes along the same line with the execution of Content-based Instruction CBI in SMAN 3’s
international class. In short, since the core idea of the immersion programs, international classes, and content activities is more or less the same, the use of
them is interchangeable.
3. Content-Based Instruction
According to Brinton 2001, CBI refers to “the teaching of language through exposure to content that is interesting and relevant to learners.” In this
study, the writer selects a senior high school international class as the main subject. The school asserts that the program employs CBI in the sense that English
is used as the means of delivering materials. Materials are delivered in English in Biology, Chemistry, Physics, and Mathematics classes. Therefore, the researcher
aims to analyze how CBI principles are implemented in reality and connect the English used to the student English grammar accuracy in writing.
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4. Grammar Accuracy
According to Scott Thornbury 1999, grammar is defined as “a description of the rules that govern how a languages sentences are formed.” In
this study, the researcher takes grammar, one of the language elements which are sometimes regarded only as the supporting component in language learning, as the
sub-topic. Some people think that grammar is an important feature in language learning, for it teaches us how to constitute a sentence correctly. However, some
others believe that it is not necessary. Thus, it is significant for us to analyze more on English grammar and whether or not the exposure to English in international
classes has any effects on English language mastery. Accuracy in this study refers to its definition by Nunan 2003: 329. He
defines accuracy as the ability to produce grammatically well-formed words, phrases, and sentences. Specifically, the grammar accuracy being addressed in this
study is the student’s ability to produce sentences with correct agreement between the subject and the verb.
5. Subject-Verb Agreement Concord
Phillips 2003 regards Subject-Verb agreement as a simple matter in the sense that if the subject of the sentence is singular, then the verb must be singular,
while if the subject is plural, then the verb must follow. In this study, the researcher will analyze the student’s Subject-Verb agreement mistakes in two
compositions. One of them is in the form of an explanation, while the other one is an argumentative kind. Subject-Verb agreement is chosen because it is present in
both types of composition.
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CHAPTER II REVIEW OF RELATED LITERATURE
