In Japan, blackboards are becoming an unlikely medium for student artists taking part in a national chalk art competition, according to ABC News. The annual contest, called Kokuban Art Koshien, brings together students from around 300 high schools and junior high schools.
The artworks are created entirely on blackboards with colorful chalk, often during summer break. Entries can include anything from dinosaurs and whales to scenes inspired by manga, famous paintings and imaginative classroom settings.
Art teacher Kazunari Minamishima told ABC News the contest gives students a chance to experiment in ways that are different from traditional art forms like painting or sculpture. The competition, started in 2015 by Tokyo-based blackboard maker Nichigaku Co., is judged by photographs because the blackboards themselves are difficult to move.
Students at Kumagaya Girls High School, northwest of Tokyo, are among those entering for the first time this year. Chiho Ninomiya said the experience is helping her build closer friendships with classmates, even if the team does not win. Contest supporters say the project also teaches students about collaboration, impermanence and the value of continuing after work is erased.




