The goal of this dissertation is to research the role of school backyard when trying to prevent bullying amongst students in elementary school. We are trying to find an answer to the question- is there a possibility to develop a healhy and safe environment using different techniques and activities in school backyard and use them in preventing bullying and developing trust between each other. The curriculum that is currently in place for the module Priroda i društvo is supposed to deliver positive and responsible bahavior from one student to another. The curriculum is in place to increase emotional, cognitive and social competences of a student and development of positive values. As an example, we mentioned program that has been used as part of elementary school Jelkovec- “Cvjećari u eko priči“. The program observed student Marko throughout his first grade to his fourth grade. Marko was diagnosed with attention deficit hyperactivity disorder (ADHD) and aggresive behavior. After participating in different activities in school backyard, the goal of this dissertation came to life. Observed student realized how important he is as an individual and how he can influence his life and world around him in positive way. Bullying of his fellow students dissapeared.