MATHEMATICAL PROOF: THE LEARNING OBSTACLES OF PRE-SERVICE MATHEMATICS TEACHERS ON TRANSFORMATION GEOMETRY

• Main Authors: Muchamad Subali Noto, Nanang Priatna, Jarnawi Afgani Dahlan
• Format: Article
• Language: English
• Published: Sriwijaya University 2019-01-01
• Series: Journal on Mathematics Education
• Subjects: Mathematical proof; Pre-service mathematics teachers; Geometry
• Online Access: https://ejournal.unsri.ac.id/index.php/jme/article/view/5379

Several studies related to mathematical proof have been done by many researchers on high-level materials, but not yet examined on the material of transformation geometry. The aim of this research is identification learning obstacles pre-service teachers on transformation geometry. This study is qualitative research; data were collected from interview sheets and test. There were four problems given to 9 pre-service mathematics teachers. The results of this research were as follows: learning obstacles related to the difficulty in applying the concept; related to visualize the geometry object; related to obstacles in determining principle; related to understanding the problem and related obstacles in mathematical proofs such as not understanding and unable to express a definition, not knowing to use the definition to construct the proof, not understanding the use of language and mathematical notation, not knowing how to start the proof.