Smartphone Summit: Children's initiative to prevent cyberbullying and related problems

The purpose of this chapter is to sketch out a children-centered practice to prevent cyberbullying and related problems called "Smartphone Summit." The first part depicts the outline of the practice. The following part portrays the history of development of the practice, including its tragic starting point. The theoretical framework of Smartphone Summit, characterized by three traits-cascade model for dissemination, interschool activity model, and intergenerational collaboration-is detailed. Based on the framework, a new evaluation methodology is constructed and utilized. It was revealed that after the Smartphone Summit, its participants expected positive impacts of their activities on their classmates' Internet and Smartphone (I and S) usage in the future. The chapter concludes itself by providing perspectives on future of children-centered practice that seeks to prevent cyberbullying and related problems.