THE IMPLEMENTATION OF MIND MAPPING TO DEVELOP VOCABULARY OF JUNIOR HIGH SCHOOL IN SMP GAJAH MADA MEDAN

The objective of this study is to find the implementation of mind mapping to develop vocabulary of junior high scjool in SMP gajah mada medan. This study was conducted by using classroom action research. The subject of this research was the first grade of SMP GAJAH MADA MEDAN 32 students. The research was conducted in two cycles and every cycle consisted of three meetings. The instruments of collecting data were quantitative (writing test) and qualitative data (diary notes, observation sheet, and interview sheet). Based on the writing test scores, students score kept improving in every test. In the orientation test the mean score was 56.41, in the first cycle, the mean score of the competence score was 60.46, in the second cycle, the mean of the competence score was 76.72. Based on the diary notes, observation sheet, and interview sheet, it was found that teaching-learning process ran well. Students were active, enthusiastic, and interested in writing. The result of the research showed that Brainstorming Technique could improve students achievement in vocabulary test.