The aim of this study was to find out whether Bits and Pieces Game is effective to improve students’ writing in descriptive text of the seventh grader students of SMP Muhammadiyah 7 Semarang in the academic year 2016/2017. In this study, the researcher used quasi-experimental research design. Population at this research was all the seventh grader students of SMP Muhammadiyah 7 Semarang in the academic year of 2016/2017 which the total number of the students was 77. The sample of this study consisted of class VII A as an experimental class and class VII B as a control class. The technique used in collecting the data was test. The result of this study shown that the pre-test mean score of experimental class was 42.32 while the pre-test mean score of control class was 46.48. After giving treatment for four meetings, the post-test mean scores of experimental group was 60.61 and the post-test mean score of control group was 49.74. The result of the analysis showed that there was significant difference between experimental class and control class in the result of post-test. It was supported by the sig (2-tailed) score of t-test namely was 0.048 < 0.05. It means that Ho was rejected and Ha was accepted. Therefore, it could be concluded that using Bits and Pieces Game was effective to improve students’ writing in descriptive text of the seventh grader students of SMP Muhammadiyah 7 Semarang in the academic year 2016/2017.

Keywords: Bits and Pieces Game, Writing, Descriptive Text