Student Visualization in Solving Geometry Problem: The Case of Reflection
Della Yurmalia, Tatang Herman

Departemen Pendidikan Matematika, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Bandung 40154
Departemen Pendidikan Matematika, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Bandung 40154

Abstract

Visualization is a mental act representing a visual information. In solving geometry problem, we need visualization to identify and illustrate the information. This study aimed to analysed student visualization in solving the reflection problems. We studied one of high school students at grade eleven who is a female olympian. There were three step in this study. First, we chose two reflection problems. Next, we interviewed her by semi structure interviewed. Finally, we analysed student spatial visual comparing to types of visualization by Presmeg. We found that she has two types of visualization that are pattern imagery and kinaesthetic imagery. In the future, we can design instructional tasks that are convenient for this visualizer.

Keywords: visualization, geometry, reflection

Topic: Mathematics Education