Working in collaboration with Research Alliance for New York City Schools at New York University (RA), EDC is conducting an evaluation of the Computer Science for All (CS4All) program in New York City. This ten-year initiative has the goals of training 5,000 teachers to provide CS education, ensuring that by 2025 all NYC students receive a meaningful CS education experience in elementary, middle, and high school. EDC and RA are engaged in formative evaluation to determine what kind of CS education New York City schools are currently offering, and what support DOE needs to provide schools and teachers to improve those offerings. In later years, we will assess the extent to which NYC DOE is achieving its goal of ensuring equitable, high-quality CS education to all students.