B. Population and Sample
The object of this study is SMPN 2 Pamulang. The subject includes the English teachers as main subject and the students of the eight grade of SMPN 2 Pamulang. There
were 314 eight grade students who studied at SMPN 2 Pamulang which is divided into eighth classes namely VIII.1 until VIII.8.
There were two English teachers who taught English subject at eight grade of SMPN 2 Pamulang, they are Tuting Tubarsih, S.Pd who teaches at VIII.1 until VIII.4 and
Supriyadi, S.Pd who teaches at VIII.5 until VIII.8 They are all full time English teachers. The English teacher to be observed by the writer is Tuting Tubarsih, S.Pd, because she is
the teacher of the students that the writer took as sample. The technique of sampling used by the writer is simple random sampling. It caused
the population that the writer observed is homogeny students of the eighth grade. The sample was taken randomly, from the four classes that she took as sample, she only took 20
students for every class. So, the total population that she took as sample is 80 students.
C. The Research Instruments
The research instruments used in this study include questionnaire, observation, documentation of teaching – learning process and evaluation test.
The questionnaire is given to the English teacher including some questions about 1 teaching preparation made by the English teacher, 2 the teaching-learning process in the
classroom, 3 the media used in teaching-learning process, and 4 the evaluation done by the English teacher.
The observation is used to observe the teaching-learning process conducted by the English teacher in the classroom including English teacher’s activity in the classroom, the
book used by English teacher and students, the implementation of using pictures in teaching the present continuous tense, and the evaluation used by the English teacher.
Documents were used to gain the data about teaching preparation made by the English teacher, such as syllabus, lesson plan, and evaluation instruments made by the
teacher. It can be gained by borrowing teaching preparation made by the eighth grade English teacher.
Test is used to know how well the students have already mastered the present continuous tense and it is also used to prove the effectiveness of using pictures in teaching
the present continuous tense.
D. Data and Source of Data
The data of this study were divided into five kinds; they are 1 the data about the teaching preparation made by the English teacher, 2 the data about the implementation of
using pictures in teaching the present continuous tense conducted by the English teacher, 3 the data about the advantages and disadvantages of using pictures in teaching the present
continuous tense , and 4 the data about the effectiveness of using pictures in teaching the present continuous tense.
The data about teaching preparation made by the English teacher at the eight grade of SMPN 2 Pamulang were obtained from the textbook, curriculum and used to answer the
first question. The implementation of using pictures was derived from the English teacher, students, and class activities and were used to answer the second question.
The data about advantages and disadvantages in using pictures were derived from English teacher and, students, and English teaching-learning process to answer the third
question. And the data about the effectiveness of teaching the present continuous tense through pictures were obtained from students’ achievement and used to answer the fourth
question.
E. The Techniques of Collecting Data