The educational support programs offered at the Niko Niko Room of the Center for School Education and Research of Hiroshima University enable university students to support school children with their studies, especially arithmetic. The purpose of this study was to examine the effects of the educational support programs of 2017 on university students. Data of 62 students who answered questionnaires before and after the program was analyzed. Of the 62 students, 28 students did the actual study support and 34 students observed the study support done by other students. Students who did the actual teaching were taught and supervised by supervisors. All students participated in case review sessions where the group reviewed each case. Results showed that both the students who did the actual support and who did the observations formed “teaching skill” through their participation in the programs. Not only this study but also other previous studies which examined the effect of this educational support program showed a certain effect on formation of students’ abilities.