California’s Transitional Kindergarten (TK) program provides an additional year of schooling within the K–12 system that aims to prepare children for kindergarten. Launched a decade ago with limited eligibility, the program will be expanded to all four-year-olds by 2025–26. Little is known about TK’s longer-term impact—especially among multilingual students and students with disabilities, who might benefit from early identification. Taking stock of TK’s impact so far can help the state expand it successfully.

This study explores the impact of county-level immigration arrests on the academic achievement, attendance, and perceptions of school climate and safety for Latinx and Latinx English learner students in California's CORE districts. The research found that there is a negative relationship between immigration arrests and these students' academic performance and school experiences. The study recommends policies and practices that can help schools and districts create safer, more welcoming environments for immigrant-origin students and families in the face of anti-immigrant actions.

Parental engagement is essential to improve academic outcomes for all students, particularly low-income, Black, and Latinx students. Distance learning has intensified the need for parental support, but state policies and tools for engagement are inadequate. Local Educational Agencies can remove barriers to data access and support parent engagement by following three key principles and taking related actions.

California and the US are undergoing a cultural shift in school accountability policies towards locally-determined measures of school performance. Lessons can be learned from the CORE districts, which developed an innovative accountability system, emphasizing support over sanctions, and utilizing multiple measures of school quality. The CORE districts' measurement system and collaboration hold promise for improving local systems, but efforts to build capacity remain a work in progress.

This brief provides an overview of California's existing network of preschool centers and the potential impact of Proposition 82, which would provide funding for half-day preschool programs for 70% of the state's four-year-olds. PACE, an independent research center, aims to clarify evidence informing education policy options. A 2005 PACE review focused on enrollment patterns and policy options for improving access and quality of local preschools.