Since 2008, the Center for School Education and Research of Hiroshima University has been offering an educational support program at the Niko Niko Room where university students are able to support school children with their studies, especially arithmetic. In this study, the effects of the educational support programs of 2012 on university students were examined. Data of 65 students who answered questionnaires before and after the programs was analyzed. Of the 65 students, 30 students did the actual study support and 35 students observed the study support done by other students. The actual study support was taught and supervised by supervisors, and cases were taken under review by the group. Results showed that students' ability of "teaching skills" was formed through their participation of the program in both the students who did the actual support and who did the observations. Students were especially able to better their ability in offering appropriate educational materials, and in leading the children to notice their study problem on their own. Students were satisfied with the educational support program which they were able to be involved with children, and to experience actual teaching.