The education process is most importantly aimed at optimal children's development and their successful learning. School, thus, has a task to provide safety, underlying the clear rules of behaviour and zero tolerance for violence, and to create a positive and stimulating atmosphere. Such school approach is based on dynamic mutual relations among learners, their families, teachers, classes, the entire school, and a wider social context in which the school exists and operates. In a high-quality school, individual differences are accepted, and no one is excluded from the process of making more important decisions. Therefore, it is vital to see how much the school recognizes, encourages, and frees learners' natural curiosity as well as their critical assessment of their own and social values. In order to contribute to creating a positive school atmosphere and thus encourage the learners' progress and their wish to learn, this paper examines learners' opinions about their own behaviour, satisfaction with school and ways of teaching, and the quality of family environment (a questionnaire has been designed for this purpose). The research was conducted in one primary school in the Zagreb area, including 114 seventh-and eighthgraders. To determine the grade-and gender-related differences, the non-parametric Mann-Whitney test was used for testing significance between two independent samples. With the purpose of creating a positive school atmosphere, mutual relations among learners' personal and social, and the schools' organizational factors have been analysed, and the results show a statistically significant difference in the learners' opinions about the non-acceptable forms of behaviour, as well as the quality of the family environment, effective parenting, and the perception of personal and social development. There is a statistically significant difference between seventh-and eighth-graders in their self-assessments of the development of a positive responsible attitude towards their health and safety, ability to recognize the consequences of their own and others' actions, acceptance of rules of cooperation, and attitudes about family environment. These results in the process of education raise additional questions that can serve to further elaborate the methodology and search for ways to develop self-evaluation and prevention programs in the future, making them a more efficient and effective approach to improving the overall school work.