John Hattie’s landmark Visible Learning research concluded that one of the most important influences of student achievement is how teachers think about learning and their own role. These powerful mindframes, which should underpin every action in schools, are founded on the principle that teachers are evaluators, change agents, learning experts, and seekers of feedback who are constantly engaged with dialogue and challenge. In this hour-long keynote at Education Week’s Leaders To Learn From event in Washington, hear the researcher, author, and professor describe his research and the importance of the educator mindframe.