Zhang, Yixuan, and Feng Chen. “Analyzing the Development Trajectory of Sociomathematical Norms in a Ninth-Grade Classroom-A Case Study on the Lesson ‘Inscribed Angle’”. Education Insights, vol. 3, no. 3, Mar. 2026, pp. 79-85, https://doi.org/10.70088/wqxc4836.