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E. Researcher’s Role on the Study
In this research, the writer acts as a teacher who implements semantic mapping strategy in students’ vocabulary learning. Thus, the writer not only as the
researcher but also she is a planner, she making pre-test, a lesson plan and post- test for each cycles, and these responsibilities is accompanied by the English
teacher at SMK Triguna Utama who act as a collaborator. Together with the collaborator the researcher see how is the implementation of semantic map
strategy and stud ents’ performance in observing stage, then collecting and
analyzing the data, after all data are gained they reports the result of the research until reach the criterion of action success which proof the action hypothesis and
means the action is stopped fo r enriching the students’ vocabulary.
F. Preparing for CAR
Before the writer starts this classroom action research, she made any instrumental input that will be used to apply CAR, such as lesson plan that
consists of basic competencies and indicators including teaching of vocabulary by using semantic mapping strategy. Besides that the writer will use some media,
they are students’ worksheet, picture, observational paper and evaluation paper.
G. Data and Data Source
In this classroom action research the writer is using qualitative data experienced-based and quantitative data number-based. The qualitative data
consist of observation within the activities in the class and interviewing the teacher. Meanwhile, the quantitative data uses pre-test, post-test and
questionnaire. In collecting data, the writer used some techniques, such as:
a. Observation
The observer observes in a passive way before conducting CAR. The observation is carried out to the teacher when she performs the teaching-learning
activities in the class and also the students’ performance during these activities.
Pre-observation is brought by the writer through taking chair in the last row in
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order the writer can observe more freely to accomplish it toward the teaching- learning process.
Then, o bservation is focused on the teachers’ activities in performing
vocabulary learning by using semantic mapping strategy which is carried out by the collaborator, it is unstructured observation. Observation of teacher jobs are
also aimed for teachers’ explanation, teacher efforts to motivate students, asks the student and response students’ question, manage the classroom, gives exercise and
feed- back, and last do the assessment toward students’ achievement. On the other
ha nd, observing the students is focused on students’ participation in following the
class, whether they are active or not to do the exercise or ask the teacher and react well toward stimuli that teacher or other students given. Generally, the observer
should take notice all of the important aspect whether the teaching learning process fit with the lesson plan or not.
b. Interview
The writer takes an unstructured interview with the teacher first before implementing CAR, the writer asks the teacher to know
students’ difficulties in English skills especially in vocabulary, students’ condition in involving in
vocabulary activity, and the method or kinds of strategies usually adopted by the teacher in teaching vocabulary. Second interview will be accomplished after the
implementation of CAR to know the teacher’s and students’ response toward the idea of semantic mapping technique.
c. Questionnaire
The structured questionnaire was given to the students of X Electro B Class of SMK Triguna Utama Ciputat in order to know their responds toward the
process of teaching and learning vocabulary by using semantic mapping strategy and also about their motivations and problems in learning vocabulary before and
after they were taught using semantic mapping strategy.
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d. Testing
The writer used pre-test and post-test. The pre-test is done before implementing vocabulary in semantic mapping strategy
. It is to measure students’ vocabulary mastery at first. Meanwhile, the post-test is implemented after using
semantic mapping strategy. In this study, the test is done in form of multiple choices and essay. The test is held on every third action of each cycle.
H. Technique of Data Analysis
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