This article intends to delineate the policy of the supervision system, which is a sub-system of the Turkish education system, for the years 1980-2021, through policy analysis. A systematic literature review (SLR) analyzed the research findings of 44 studies. The findings of the study were categorized according to four main themes that Eranıl (2021) pinpointed as the critical periods in the history of the Turkish education system. Critical periods were classified as a post-coup period: (1980-1997), compulsory eight-year education period: (1997-2005), constructivist period: (2005-2012), 4 + 4 + 4 education system period: (2012 and later). The results of the research indicate that the supervision system in Turkey struggled with organizational structuring problems for more than 40 years. It is also revealed that the supervision system does not have a developed philosophy or applicable principles. Due to these issues raised pertaining to supervision processes, supervisor competencies and personnel are analyzed and discussed.

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