The graduates of the Natural and Technical School from Split are having their professional practice for the fourth year in a row in the Sunce Association. Six students will, with the help of mentors and commentators, carry out various activities on the Green Phone theme, composting, waste in the sea, cycling tracks, and plastics and the principles of waste management, as part of the Educational Program Socially Useful Learning. With the participation in the lectures, the graduates will, depending on their graduation work, perform field research and participate in the organization and implementation of public events. After the completion of practical work, the writing of the final work, the presentation of the results as well as the evaluation of the entire engagement are foreseen. With this educational program, students are taught how to work in a team and independently, also, various ways of communication, methods of research and presentation skills.