The implementation of the Malaysian National Education Blueprint in 2012 has expanded headmasters' responsibilities and roles in managing schools. The goal is to stabilize and strengthen the primary school education system, which brings tremendous pressure to bear on the headmasters charged with managing schools, especially in managing the school curriculum. This article explores the roles of elementary school leaders and their perceptions in managing the school curriculum following the National Education Blueprint. It discusses the knowledge and skills in managing and handling the school curriculum, the aspects of school curriculum and guidelines for effective and efficient curriculum. This study is grounded in pragmatic worldview and concerned with applications and solutions that face educational leaders today. It was conducted in a State of Selangor, Malaysia and involved nine headmasters from nine schools. The findings will make a significant contribution to educational leadership by providing a general understanding of headmasters' roles, leadership and challenges in managing primary schools.