“…A set of in-depth studies across multiple states and in Chicago help illuminate what strategies seem most promising. The Center for Standards, Assessment, Instruction, and Learning (C-SAIL), a five-year research center funded by the Institute for Education Sciences, drew on data from California, Kentucky, Massachusetts, Ohio, and Texas for its studies (Desimone et al, 2019; Edgerton & Desimone, 2018, 2019; Pak, Desimone, & Parsons, 2020; Nichols, Edgerton, & Desimone, 2021; Pak, Polikoff et al, 2020; Song et al, 2022; Stornaiuolo, Desimone, & Polikoff, 2023). Data included representative surveys of 84 district officials, 439 principals, and 1,760 teachers; 36 interviews with state officials; 54 district interviews across nine districts; and in-depth teacher interviews, classroom observations, and focus groups with students in three districts.…”