Instructional Leadership is one of the most critical fibers to weave with all other aspects of leadership and governance among public schools in the Philippines. This study described and examined the instructional leadership styles of school heads and the administrative challenges they encountered relative to the delivery of instruction among the selected secondary schools in the Philippines. It utilized descriptive-correlational design where 100 randomly selected school heads and 100 randomly selected teachers from selected public schools participated as respondents of the study. Survey-questionnaire was utilized as instrument to gather data. Results showed that among the different instructional leadership styles, distributed instructional leadership was highly utilized by school heads to engage their teachers in delivering effective and efficient instruction. Thus, an increased in distributed instructional leadership influences the greater challenges encountered in resource management. School heads heavily experienced administrative challenges when they pervasively utilized distributed instructional leadership styles.

Keywords: instructional leadership styles, administrative challenges, school heads, teachers, transformational, transactional