Abstract

Although there are increasing numbers of professional development (PD) materials intended to foster teachers' mathematical knowledge for teaching within the topics of number and algebra, little attention has been given to geometry. In this article we describe the Learning and Teaching Geometry project's approach to the development of PD materials aimed at supporting middle grades teachers to meet the challenges of teaching similarity. We discuss the design research approach of the project, including developing a mathematical learning trajectory, videotaping in classrooms, and selecting videoclips to support our learning goals. We use a sample videocase to illustrate the design process. (Contains 3 notes and 4 figures.)

Citation

Seago, N., Jacobs, J. & Driscoll, M. (2010). Transforming Middle School Geometry: Designing Professional Development Materials that Support the Teaching and Learning of Similarity. Middle Grades Research Journal, 5(4), 199-211. Retrieved August 15, 2024 from https://www.learntechlib.org/p/52794/.

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Keywords

• Educational Change
• Educational Objectives
• faculty development
• geometry
• Material Development
• mathematics education
• Middle School Teachers
• Pedagogical Content Knowledge
• teaching methods
• Video Technology