Bridget Hamre, Ph.D. is co-founder and Chief Executive Officer at Teachstone. Dr. Hamre’s areas of expertise include student-teacher relationships and classroom processes that promote positive academic and social development for young children and she has authored over 65 peer-reviewed manuscripts on these topics over the last 15 years. Her research documents the ways in which teacher-child relationships and teachers' social and instructional interactions support children's development and learning and may help close the achievement gap for students at risk of school failure. Dr. Hamre is a co-author of the Classroom Assessment Scoring System (CLASS) and, in partnership with Dr. Robert Pianta, led early work to scale the use of CLASS as an assessment and professional development tool across the country. She collaborates with the Office of Head Start on their implementation of the CLASS as a part of the federal monitoring process and consults with numerous states on their Quality Rating and Improvement Systems. In all of this work, her goals have been to ensure the CLASS is used in ways that accurately assess children’s experiences in classrooms and that provide teachers with the feedback and support they need to best support the children in their classrooms. Dr. Hamre received her bachelor’s degree from the University of California, Berkeley and her masters and doctorate in clinical and school psychology from the University of Virginia.