School Improvement (SI)—formerly known as District and School Improvement and Accountability (DSIA)— provides a range of research-based services and supports to:

• Districts and schools in improvement based on Adequate Yearly Progress (AYP) as required by the No Child Left Behind Act (NCLB) of 2001; and
• Identified Tier I, Tier II, and Tier III schools and their districts as defined under federal School Improvement Grant (SIG) requirements for persistently low-achieving schools.

Services are offered under SI's Washington Performance Management Framework (WPMF). Each year, SI uses a variety of data to place districts and schools into support clusters on the WPMF; this placement is based on greatest need and strongest commitment. Specific services are then aligned and matched to district and school needs.

Districts and schools identified for services through the WPMF are invited to apply to participate in the Washington Improvement and Implementation Network (WIIN). Through the WIIN Center, which is located in Tacoma, district/school teams can engage in effective professional development emphasizing evidence-based practices and other innovations which are designed to:

• Accelerate and substantially improve the academic achievement of ALL students
• Close opportunity and achievement gaps
• Use Needs Assessments and Improvement Processes to prioritize needs and invest limited resources in several targeted goals
• Build effective systems to serve ALL students and sustain changes over time
• Satisfy requirements for districts and schools in the No Child Left Behind Act (NCLB) of 2001 and the federal School Improvement Grant (SIG)

In partnership with WIIN and Educational Service Districts (ESDs), evidence-based improvement tools, processes, and strategies can be taken to scale and conditions built to sustain improvements over time.