Investing in inclusive PK-3 education is one of the most powerful ways to promote long-term academic, social, and economic success for all students. Research consistently demonstrates that high-quality early learning experiences shape brain development, build foundational skills, and reduce achievement gaps, and that inclusive settings maximize opportunities and outcomes for students. Realizing the full impact of this investment requires that educators, administrators, and policymakers effectively implement evidence-based practices in classrooms and early learning programs.