The purpose of this bachelor's thesis is to present the perspective of primary school teachers on the social integration of immigrant and refugee children, (at the age of 5-12) who immigrated to Greece at the end of 2014 until today. Specifically, the contribution of the primary school in achieving social integration through the operation of the ΖΕΠ (Educational Priority Zone) and ΔΥΕΠ (Refugee Reception and Education Structures) classes will be investigated. This is an empirical research, which analyzes the evidence (interviews) that have been collected by the method of thematic content analysis. At the end there is a discussion about the emerging results and the general conclusions are recorded.