F P =
── X 100 N
21 P =
── X 100 34
P = 61.76
From that calculation, the class percentage which passes the KKM is 61.76. It means that in the cycle I of Classroom Action Research CAR, there
are 21 students who passed the KKM, the class percentage of posttest 1 shows some students’ improvement of the class percentage in the pretest 14.70. The
students’ improvement which passes the KKM is 47 61.76 - 14.70. Even
though it is still needed more improvement because it could not achieve yet 70 as the target of success Classroom Action Research.
Furthermore, in the cycle II of Classroom Action Research CAR the writer also calculates the result of posttest 2 to know further the score
improvement either from the result of pretest or posttest 1. There are three steps to know this improvement. Those are to calculate the mean score of the class, to
calculate the percentage of the students’ improvement score, and to calculate the class percentage which pass the KKM 70.
Firstly is to calculate the mean score of the class in posttest 2. The calculation using as follows:
_ ∑x
X = ──
n _
2555 X =
─── 34
_ X = 75.15
From that calculation, the mean score of posttest 2 is 75.15. It means that there are some students’ improvements scores 10.41 from the mean score of
posttest 1 69.26. The second step is to know the calculation of the percentage of students’
improvement score. Here, the writer computes by using the formula: y2 - y
P = ──── X 100
y 75.15
– 55.29 P =
───────── X 100 55.29
19.86 P =
──── X 100 55.29
P = 35.91
Based on that computation, it could be seen that the posttest II improves 35.91 from the pretest or 10.65 35.91
– 25.26 from the posttest 1. The last step is the writer tries to get the class percentage whose score
pass the KKM. It uses the calculation as following:
F P =
── X 100 N
29 P =
── X 100 34
P = 85.29
In the end of cycle two, the result of the posttest showed that there were 29 students or 85.29 who passed the KKM. It improved from the pretest which
gained only 14.70 and in the posttest 1 which had any improvement become 61.76. Therefore, based on the class percentage result from the pretest to the
posttest 2 in the second cycle improved about 70 85.29 – 14.70. It proved that
the target of CAR success in which minimum 70 students passed the KKM could be achieved.
4. Interpretation of the Data
As a whole, the interpretation of the data results among the pretest, posttest of cycle I, and posttest of cycle II are as following:
In the result of pretest, the mean score of students’ test before carrying out Classroom Action Research is 55.29
. It is the students’ test score before the use of narrative text. Meanwhile, the class percentage which passes the KKM is 14.70.
It means that that there are only 5 students who are able to pass the KKM 70 and there are 30 students who are not able to pass the KKM.
Furthermore, the mean score in the posttest of cycle I is 69.26. It means that there are some students’ score improvement from the previous test pretest,
that is 13.97 69.26 – 55.29 or 25.26 It is not enough to reach the research
target and still need to be developed. Meanwhile, the class percentage which passes the KKM in post-test 1 is 26.31. It shows there are 10 students who pass
the KKM and there are 22 students whose score still under KKM. It means that still needed more improvement because it could not achieve the target yet of
success CAR, that is 75 or at least 29 students from the class percentage. That is why the writer and the English teacher continue to the second cycle.
Next, the mean score in the posttest of cycle II is 68.42. It shows the improvement students’ score 19.53 68.42 – 48.89 from the post-test 1 68.42.
Meanwhile, the class percentage which passes the KKM is 55.26. It means there
are 21 students whose score pass the KKM and there are 17 students are under the target of KKM. This result of cycle 2 showed that the students still need more
improvement because it could not achieve the target of the success of the Classroom Action Research yet, that is 75 of the students. So that, the writer
together with the English teacher continue to the next cycle. In cycle II, the mean score in posttest 2 is 75.15. It shows the improvement
of the students’ score is 35.91 75.15 – 55.29 Meanwhile, the class percentage
which passes the KKM is 85.29. It means that there are 29 students whose score
pass the KKM and there are 5 students are under the target of KKM. This class percentage shows some improvements 85.29, from the pretest 55.29,
posttest 1 69.26, and posttest 2 75.15 in the class percentage. The result of posttest II in cycle II has fulfilled the target of Classroom Action Research
success that is above 70 students could pass the KKM. Automatically, it can be said that the Classroom Action Research CAR is success and the cycle can be
stopped.
55
CHAPTER V CONCLUSION AND SUGGESTION
After accomplishing the entire steps of this CAR, the writer made some
conclusions and suggestions based on the result of this research.
A. Conclusion
Based on the research carried out in VIII-1 grade at MTs. Al-Falah Jakarta academic year 20102011, it can be concluded that narrative text is an effective
way to develop students’ understanding in learning Simple Past Tense. It could be proved by several facts; related to observation result, students were more active
and enthusiastic in learning Simple Past Tense, and they were able to comprehend narrative text. Related to the test result, there were some progressions of students’
score from pretest to the posttest of the second cycle. In the pretest, there were five or 14.70 students who passed the KKM and the mean score of pre test were
55.29. Then in the result of posttest I in cycle 1, there were 21 or 61.76 students in the class who passed the KKM considering their mean score of the test gained
69.26. Next in the result of posttest II in the second cycle, there gained 29 or 85.29 students who passed the KKM in which their mean score derived 75.15.
Based on these result, the researcher concluded that teaching the Simple Past Tense by using narrative text at second grade of MTs. Al-Falah Jakarta could
improve students’ understanding of the Simple Past Tense effectively.
