Patricio G. Herbst is a Professor in the Marsal Family School of Education and the Department of Mathematics at the University of Michigan. He holds dual roles as a professor of education and mathematics, bridging both the College of Literature, Science, and the Arts and the School of Education. His research focuses on understanding the professional work of mathematics teachers and university instructors, with an emphasis on teacher knowledge, decision-making, and the design of online learning environments. Key areas of interest include geometry education, mathematical proof, and the development of technologies such as Anotemos and LessonDepict for learning from video and storyboarding. Herbst has led numerous grants and projects, including 'GRIP: Mathematics Grasping the Rationality of Instructional Practice,' which explores geometry teaching and teacher training. He has also contributed to initiatives like the 'LessonSketch' platform and 'GeT Support' for teacher professional development. His work spans international collaborations and curriculum development efforts in secondary mathematics education. Herbst’s research publications emphasize the integration of theoretical frameworks with practical classroom applications, particularly in geometry instruction and teacher cognition. His book, *The Learning and Teaching of Geometry in Secondary Schools: A Modeling Perspective*, underscores his commitment to advancing pedagogical models in mathematics education. He is affiliated with the GRIP lab, a research group dedicated to studying geometry, reasoning, and instructional practices. His contributions to mathematics education include designing interventions, analyzing teacher rationality, and advancing the use of multimedia tools in teacher training.












