In this master thesis, the historical-geographical factors of the development of Eastern Croatia, which caused changes in the nodal-functional organization from ancient times to recent times, were analyzed. Special attention is focused on the changes in the functions of today's leading settlements in the urban system of Eastern Croatia. The primary goal of the paper is to answer the question of how historical and geographical development has influenced the present-day organization of the space of Eastern Croatia, and the secondary goal is to determine whether there are differences in the representation of this topic between teachers of geography and history and teachers of geography in the annual implementation curricula, in the methods of teaching geography as and in ways of evaluating students' knowledge and skills on this topic. In addition to the analysis and synthesis of the available literature, the annual school work plans and programs and the annual performance curriculum, the paper used the method of surveying teachers who teach geography in primary and secondary schools in the Osijek-Baranja County. The results of the survey provide answers to the questions about the differences between primary and secondary schools, about the differences in the organization of teaching between single-subject and dual-subject teachers, and about the representation of the topic of the nodal-functional organization of Eastern Croatia in regular and other types of teaching in Osijek-Baranja County.