Operational Definitions

1.1  Operational Definitions

In this experimental research there are two terms need to be defined operationally, there are:

1.1.1        Communicative Approach

According to Tomlinson (1987: 1) communicative approach is any approach to classroom teaching and learning which put the emphasis in improving the learners ability to communicate in language via motivating activities involving exposure and use in other word, An approach in which the learners are asked to use English in meaningful and purposeful way,

In this research, the writer applies the communicative approach is to give a chance to the student to interact effectively by using meaningful and purposeful way on vocabulary achievement.

1.1.2   Vocabulary Achievement

Vocabulary means the total number of word which (which of rule of combining them) make up a language Horn by, (1995: 1331). Meanwhile according to Horn by (1995: 110) achievement is something done successfully with effort and skill, so it means that achievement is a result of the performance of the student on what has been taught and learn by individual, which make up language.

 In this research, vocabulary achievement is the ability of the students to achieve a wide range of words which has been learnt caused by the process of teaching learning by using an approach.

1.2   The Significances of the Research

The result of this experimental research are expected to give contribution are theoretically and practically.

1.2.1        Theoretically 

Theoretically it gives information to the English teacher about the effect of communicative approach; it can make some consideration to teaching English especially in teaching vocabulary

1.5.2         Practically

The result of the research can be used to get the student vocabulary achievement. It can improve the motivation in learning teaching process.

1.3     The Scope and Limitation of the Research

The scope of this research concludes two variable, namely communicative approach and vocabulary achievement.  Communicative approach is limited by characteristic of communicative approach, principle of communicative approach, the role of the teacher, and the role of the student. Vocabulary achievement is limited by noun, adjective and adverb.

The limitation of the research is on the eight grade student SMP Negeri 01 Balung in academic year 2012/2013