Twenty teenage makers attended a summer program held by Shenzhen Library from July 23 to 26 and learned to make devices for use by teenagers that help correct sitting posture and improve or prevent myopia. The program, which was held at the Maker Space of the library and utilized the project-based learning method, was widely received by parents and teenagers alike as all available slots were filled up five minutes after the program was made open to the public for registration. In the course of the four-day program, the instructor introduced the students to modular programming, the principles of sound waves, and the characteristics of the devices they would create. The program divided participants into groups of four where students learned about software learning, design planning, and the structure of the prevention devices collaboratively. Using the electronic components and other hardware tools provided in class, all groups of students finished creating their myopia prevention devices in four days and presented their work. They received certificates at the end of the program after completing all required projects. According to some participants, they realized through the program that their posture while reading and doing homework had been incorrect. They vowed to adopt a proper sitting posture from now on, which is crucial to maintaining good eyesight. According to a report published by the Ministry of Education of China in 2018, China’s teenage myopia prevalence rate ranks first among the world’s countries. The report also shows that low vision prevalence rates among fourth and eighth graders are 36.5 and 65.3 percent, respectively. (Liu Wenjin) | 