The current paper primarily aims to investigate and interpret the observations, perceptions, and experiences of an effective school's principal through a qualitative approach. The study was designed as a case study. The participant of the study was a primary science education teacher with 17 years of experience in the profession who has been a school principal for two years. As the data collection tool, semi structured interview format -the most preferred way of obtaining data in qualitative research- was chosen. Descriptive analysis of data interpretation was adopted throughout the data analysis process. As it is stated in related literature, in descriptive analysis, the obtained data is identified in a systematic and clear way. Afterwards, these descriptions and identifications are explained and interpreted, and the cause and effect relations are examined, eventually some certain conclusions are made based on the data. The results of the present study showed that participative leadership, seeking subordinates' motivation and satisfaction, and concerning students' needs are essentials in school administration. The results were examined and interpreted within the scope of the educational administration literature and administrative and functional features of Turkish education system.