While calls for introducing “continuous improvement” into K-12 education systems in California (and beyond) have grown, definitions of continuous improvement vary, and knowledge of what continuous improvement looks like in practice is limited. To advance the conversation, a report published by Policy Analysis for California Education helps to define continuous improvement, both in theory and in practice. The authors, including Carnegie Senior Fellows Sandra Park and Alicia Grunow, make clear that implementing continuous improvement system-wide requires more than seeing its value and referring to it as a goal for the system. Rather, it requires a shift in mindset and in culture, a substantial investment of time and resources, and persistent effort over time; everyone in the system should have opportunities to engage in investigations of their daily work to continually improve their practices, processes, and ultimately—student outcomes. Read the report here.