Visualizer's representation in functions

Abstract

Students' understanding of a mathematics objects can be seen by their perspective of a mathematics topic. In other words, the study of a specific case can enrich one's conceptualization of the general. This study is a descriptive qualitative research. The visualizer's paperwork is described based on their preference in representing a function. Visualizer's paperwork and interviews provide opportunities to get additional description about her mathematical conceptions and how her understanding about functions by using representation. Visualizer tends to connect their imagination of a picture and represents it based on her ideas. Visualizer defines functions by its perceptual unit that each elements of the domain connected with exactly one element of the codomain. In modelling graph representation, object imager uses all information in the diagram and represent it in symbol notation. In interpreting functions, object imager prefers diagram representation rather than word situation and symbol representation.