McBroom, E. S., Jiang, Z., Sorto, M. A., White, A., & Dickey, E. (2016). Dynamic approach to teaching geometry: A study of teachers’ TPACK development. In M. Niess, S. Driskell, & K. Hollebrands (Eds.), Handbook of research on transforming mathematics teacher education in the digital age (pp. 519-550). IGI Global. https://doi.org/10.4018/978-1-5225-0120-6.ch020

Abstract: 

“Secondary geometry teachers from several urban school districts participated in a two-year professional development focused on integrating dynamic geometry into teaching. The chapter documents the positive impact of the professional development for teachers’ Technological Pedagogical Content Knowledge (TPACK) development and their students’ achievement in geometry through the use of the dynamic geometry approach. Instruments used to develop and assess teachers’ TPACK included a Conjecturing-Proving Test, interviews and observation protocols. Participants’ TPACK levels were identified using a TPACK Development Levels Assessment Rubric. Findings show that teachers’ TPACK tended to remain within the three middle TPACK levels (accepting, adapting, and exploring). Recommendations and suggestions for future research are offered to those who implement school-based, mixed methods research studies involving technology.”