As a part of the research topic "How we organize ourselves" students of Grade 3B visited “The Organisation Gorani of Serbia” in order to find out what it is they exactly do and what kind of problems they solve. After their visit our students organized an event as a way of showing support to “The Organisation Gorani of Serbia” and explained why it is important for everyone to plant three trees. Three fully grown trees produce enough oxygen for one person to breathe for 60 years. Students of Grades 3A and 3B planted the tree of their generation based on the instructions on the poster of “The Organisation Gorani of Serbia” . By doing so they set an example for all of us and showed us how to behave responsibly and maturely. They planted a linden tree and named it Lili Bošković.