Students’ Creative Thinking Skill on Scientific Approach Based on Lesson Study for Learning Community

Abstract

The ability to think creatively is one of the abilities needed in the 21st century. But in fact, the students’ creat ive thinking is st ill relat ive. Therefore, this research was intended to develop mathematical learning tools on the material of Sequence and Number Series on the ninth grade of junior high school through scientific approach that was on Lesson Study For Learning Community and its influence on students' creative thinking skill. The method used was the mixedmethods that combined qualitative and quantitative research. Thiagarajan model as the

developmental

research was taken as qualitative one. This research consisted of two classes; exsperimental and control classes while quasi-experimental method of nonequivalent

control group design. In normality test, the data obtained was normally distributed and the data were homogeneous based on the homogeneity test, so that it was necessary to do parametric data analysis by using independent sample t-test analysis. Based on the results of this research, the conclusions were summed up into: (1) The development of learning tools was into the category of valid, effective and practical, (2) The application of Scientific Learning based on LSLC had a significant effect on students' creative thinking skill indicated by a significance value of 0.000 (p<0,05).