The “COVID-19 slide” that will result from spring school closures makes the need for high-quality curriculum and strong instructional skills more important than ever in 2020-21. Successful new curriculum implementation is possible when teachers are provided with sustained, relevant, job-embedded professional learning that helps them master the curriculum program routines and pedagogical knowledge and practices necessary to deliver it with confidence and enthusiasm. Read this curriculum implementation showcase to learn how several districts have achieved successful curriculum implementations that led to strong growth in reading and math by focusing on professional learning for teachers.