The Abstraction Task Design of Pre-Service Teachers to Constructing Relationships among Quadrilaterals

Abstract

Abstraction is an essential aspect of mathematical thinking for students because, through abstraction, students will construct their knowledge to make learning more meaningful. This research aims to generate abstraction tasks in constructing relationships among quadrilaterals, which can create a construction in constructing them. The research method used in this study is the instrument development method adapted from Cohen et al. [1], [2]. The stages of task development by [1], [2]contain five stages: test conceptualisation, test construction, test tryout, item analysis, and test revision. The subject-taking technique was purposive sampling. The subject of this study was a pre-service teacher of the mathematics education study program who had taken a geometry course in IKIP PGRI Pontianak West Kalimantan Indonesia. Data collection tools used were tasks, interviews, and video recordings. At the test construction stage, the researchers had three task drafts, and the third draft was a proper draft to proceed to the test tryout stage. The results of the tryout test were analysed, and it was found that the pre-service teacher could construct relationships among quadrilaterals.