Thatchstone

Teachstone provides a comprehensive system for measuring and enhancing educator-child interactions, primarily through its CLASS® (Classroom Assessment Scoring System) framework. The company offers tools, training, and services designed to improve teaching quality. This evidence-based methodology empowers educational institutions to foster engaging classroom environments and positive developmental outcomes for children, by focusing on observable interactions that drive learning and development.

Co-founded in 2008 by University of Virginia professors Robert Pianta and Bridget Hamre, Teachstone emerged from extensive research at the university’s Center for Advanced Study of Teaching and Learning. Their insight focused on translating academic findings about critical teacher-student interactions into scalable, practical solutions for widespread educational improvement, leveraging their deep expertise in developmental psychology and education.

Teachstone’s products are utilized by educators, coaches, and administrators across various early learning and K-12 settings. The company’s vision is to empower every educator to cultivate life-changing teaching moments, ensuring all children benefit from high-quality interactions. It strives to make a measurable impact on educational quality globally, driving continuous improvement in learning environments.