Teachers matter more to student achievement than any other aspect of schooling. Many factors contribute to a student’s academic performance, including individual characteristics and family and neighborhood experiences. But research suggests that, among school-related factors, teachers matter most. When it comes to student performance on reading and math tests, teachers are estimated to have two to three times the effect of any other school factor, including services, facilities, and even leadership. Through our teacher training and curricula development programs, in partnership with the amazing Career and Technical Education department at M-DCPS, Miami EdTech has helped double the number of certified CS teachers in M-DCPS. In 2020, more than 1200 teachers received training or access to our computer science curriculum and programming.