More than a decade ago, the K-12 Framework for Education and the Next Generation Science Standards (NGSS) shifted states' notions of what constitutes the core of science skills and knowledge that students need to thrive in school and beyond. The majority of states adopted standards based on the framework as well as the NGSS. Yet because of the…

High-quality K-12 instructional materials can meaningfully improve teaching practice and student achievement, especially when paired with professional learning support. Yet state policymakers have usually left ultimate authority for textbook selection to school district leaders. Consequently, the quality of materials across U.S. classrooms and…