The COVID-19 pandemic has brought a breathtaking amount of change to the nation's schools in a matter of weeks. On March 11, Seattle Public Schools was the first major district to close schools. The next day, Ohio Governor Mike DeWine announced the first statewide school closure order effective March 17, beginning a cascade of similar orders. By March 20, 49 states had announced blanket school closures or recommend that districts close. With more than 50 million schoolchildren now staying home, schools and districts have had to reinvent how they deliver instruction and other essential services--and they are doing it at a remarkable pace. Accordingly, the American Enterprise Institute (AEI) developed the COVID-19 Education Response Longitudinal Survey (C-ERLS) to gauge how public school districts are adapting to provide education and other services for the duration of the pandemic response. The first wave of data was collected on March 26 and 27. Initial findings show: (1) All schools and districts surveyed had closed by March 27, and 67 percent of school closures occurred between March 16 and 18; (2) Eighty-two percent of public schools provided some type of meal service for students as of March 27. Roughly four in 10 public schools were in districts whose websites described plans to provide devices and free or low-priced internet for students to access online educational platforms; and (3) By March 27, 43 percent of schools were in districts offering a type of remote education to students, and another 30 percent had planned, but not yet provided, educational content.