Teacher Evaluator Training & Certification: Lessons Learned from the Measures of Effective Teaching Project

State and district leaders know that effective teachers can have a transformative impact on student success. They appreciate that more than any other variable within a school, effective teaching can improve educational outcomes critical to our most pressing education policy objectives:  building the STEM pipeline, ensuring that students are reading on grade level by grade three, increasing graduation rates, and ensuring college readiness. For school and district leaders, as well as governors and state legislators, college readiness and completion are not just educational aspirations; they are economic development imperatives.  The process of defining, measuring, and promoting teacher effectiveness has become a critical policy lever to achieve these imperatives.