This paper focuses on the transformation of participating fathers after attending fathering support lectures held in the B community center. The lectures provide valuable experience for the future development of fathering support. Using naturalistic observation and interviewing the lecturer, we reached the following conclusions. First, there were significant changes in fathers’ attitudes toward interpersonal skills. More importantly, fathers recognized the importance of the role of being a father. We also observed the interactions among fathers. Second, the essence of the lecture was to transmit important concepts to fathers. The lectures helped fathers to make a greater eff ort in their children’s daily education, and to change their responses to the children’s mothers. Thus, this highlights the importance of the lecturer as a third party. Finally, multiple lectures can enhance the interactions between fathers and their children and interactions among fathers.

本論は日本家政学会第69回大会（2017年５月28日）で口頭発表した内容に加筆修正したものである。