Determining the Fifth Grade Students’ van Hiele Geometric Thinking Levels in Tessellation

Abstract

This research has been conducted to determine fifth grade students’ van Hiele geometric thinking levels in tessellation. The research was conducted in a primary school in Eskiehir. 9 fifth grade students were chosen as participants. Data were collected through clinical interviews. In data analysis descriptor code key, which is similar to a key code, developed by Callingham (2004) were used. As a result,
it was obtained that the fifth grade students’ van Hiele geometric thinking levels in tessellation are visual and analytic. Besides, it was determined that there is a relation between students’ mathematical achievement and van Hiele geometric thinking levels in tessellation.