The objective that will be achieved through this research is (1) describing the condition of teaching material of social study that used in this moment for the junior high school student, (2) describing the teaching material development of character education in learning social study, Knowing the effectiveness level of teaching material of character education in learning social study. The kind of the research is Research and Development (R&D). The research conducted in nine junior high schools in area of Surakarta City, Boyolali Regency, and Klaten that are state junior high school. The research conducted in odd semester in academic year of 2014/2015. The technique of collecting data is by using test, questionnaire, observation, documentation and interview. . The technique of analyzing the data is using t-test that begun the normality tested and homogeneity tested. From the data analysis tested models canb be got the result as follows: with ts 5% and db 134; t table refers the rate 1.960 while to (t original or t ratio)= 3.354. From the data can be proven that to : t table = 3.354: 1.960, so to > t table ? significant. The conclusion: by either ts 5% , to is higher than t table. It means that H0 (Nihil hypothesis) is refused, and Ha (alternative hypothesis) is accepted. Thus based on the data analysis can be concluded that development of teaching and learning social study very significant and strengthen the students’ character.
