This study aims to develop an effective teaching method for cultivating creativity in high school education. To raise students’ creativity, inquiry-based cross-disciplinary studies and activities such as artistic creation are considered effective. However, Csikszentmihalyi(1996) highlights that a person needs to have a wide range of knowledge of a domain and field to develop creative work. Therefore, this study focused on the learning activities in which students gain knowledge of the domain and field by comparing scientists’ and graduates’ highly evaluated studies to their own. After the learning activities, students engaged in forming new ideas and learning better than those who did not gain knowledge of the domain and field.