A STUDY OF THE GEOMETRIC CONCEPTS OF ELEMENTARY SCHOOL STUDENTS AT VAN HIELE LEVEL ONE

apprehensive, operative apprehensive, sequential apprehensive and discursive apprehensive for elementary school students (POSD)”, funded by National Science Council of Taiwan (NSCTW, Grant No. NSC92-2521-S-142-004). It was undertaken to explore the geometric concepts of the elementary school students at the first level of van Hiele’s geometric though. The participants were 5,581 elementary school students, randomly selected from 23 counties/cities in Taiwan. The conclusions drawn from this study were: (a) It was easier for students to identify straight and/or curved lines due to the obvious distinctions; (b) Students had difficulties in judging rotate figures because of the direction and position concepts; (c) Identifying circle was the easiest for students, triangle next; quadrilateral was the most difficult one