This handbook is intended to aid in the implementation of the Pennsylvania School Improvement Program (PSIP), a curriculum improvement program. The PSIP model of curriculum improvement contains an intermediate unit (IU) linker (curriculum specialist) leading a school-level local action team (LAT) through a structured problem-solving approach to curriculum improvement with support provided by a school action team (SAT). The LAT is made up of the principal, teachers, and other staff. The SAT members are usually IU specialists or other resource persons. The PSIP model provides a structure for the delivery of technical assistance to a school. Its elements include school visitation by the IU linker, assessment of the needs of the school, knowledge consolidation to determine specific"products" needed, product selection, and product implementation and evaluation. Following introductory materials, most of the handbook consists of step-by-step descriptions of the detailed activities that make up the PSIP process. (Author/JM)