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Sudirman; Runisah; Yaya Sukjaya Kusumah; Bambang Avip Priatna Martadiputra – Pegem Journal of Education and Instruction, 2023
3D geometry is an essential concept in mathematics because it relates to real-world experiences and numerous mathematical topics. However, some students still have difficulty understanding this geometry. Therefore, this study aims to identify and describe students' epistemological obstacles to the dimensions of representation, spatial structure,…
Descriptors: Geometry, Mathematical Concepts, Teaching Methods, Junior High School Students