The effect of brainstorming technique on the students’s writing ability at grade XI SMAN 3 Padangsidimpuan

This research focuses on solving problems in students’s writing text at grade XI of SMAN 3 Padangsidimpuan. The students’ problems are: students were lack of knowledge; students did not know how to start writing because they cannot generate their ideas so the students write a very short sentence; the students were less understanding about the kinds of genre text; the students were confuse of hints. Beside the students’ problem, teacher’s technique also became a problem in learning writing text. The teacher still used the conventional strategy in teaching writing text. The purpose of this research was to examine the effect of Brainstorming on Students’ Writing Ability at XI Grade of SMAN 3 Padangsidimpuan. The method is used in this research is experimental research. The population was the XI grade SMAN 3 Padangsidmpuan. They were 6 classes. Two classes are chosen randomly as the sample. They were XI IPA 3 consisted of 34 students as experimental class and XI IPA 5 consisted of 34 students as ccontrol class. It is taken after conducting normality and homogeneity test. The data are derived from pre-test and post-test. To measure the data, the researcher used t-test formula to know the significant of hypothesis. After analyzing the data, the researcher found that mean score of experimental class after using brainstorming was higher than control class. Mean score of experimental class before using brainstorming was 54.14 and mean score after using brainstorming was 70.1. Meanwhile, the mean score of control class in pre-test was 55.29 and in post-test was 61.62. Besides it, the score of tcount was bigger than ttable (3.35>20.00) It means that the hypothesis alternative (Ha) was accepted. It was concluded that there was an effect of brainstorming on students’ writing ability at XI grade of SMAN 3 Padangsidimpuan