This document is an introduction to the Results-based Performance Management System (RPMS) Manual for Teachers and School Heads. It was developed by the Philippine National Research Center for Teacher Quality to align the RPMS with the Philippine Professional Standards for Teachers. The manual provides guidance for teachers on preparing and completing RPMS documents, and for school heads on assessing teacher performance. It describes the tools and processes used to evaluate performance over the RPMS cycles. The goal is to support continuous improvement in teacher quality.