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Koellner, Karen; Seago, Nanette; Jacobs, Jennifer – Teacher Educator, 2023
This research study explored teachers' self-reported uptake as well as observed instructional change after participating in a year-long professional development (PD) program focused on supporting the learning and teaching of transformations-based geometry. Analyses illuminate the degree and nature of the pedagogical shifts made by teachers who…
Descriptors: Faculty Development, Geometry, Mathematics Instruction, Video Technology