Da-jia Junior High School is the cradle of handball development. This installation art takes inspiration from the sport of handball, capturing the trajectory of its throws. Combining the unique structure of the architecture, the flowing lines showcase the dynamic flight speed and bounce of the handball, infusing the space with vitality. The work extends from the second-floor exterior wall to the southern entrance, adding a sense of movement to the static building and bringing a youthful, energetic visual experience. Therefore, it is titled "Throw, Youth!"