A Study On Eye Movements In Pupils And Middle School Students' Geometry Figure Reasoning

The eye movements of 68 subjects of pupils, grade 2 in junior high school and grade 2 in senior high school were recorded during they were reasoning geometry figures. The results were as follows:1,For the materials with similar complexity, the scores was different among three grades. For the most difficult material, which was made up with figure combination and the changing external feature of figure), the score of pupils is significantly fewer than that of grade 2 in junior high school or grade 2 in senior high school, but no difference was found between grade 2 in junior high school and grade 2 in senior high school. For another two materials, no difference was also found among three grades.2,For the materials with similar complexity, the eye movement pattern of all students was different when they were reasoning. Pupils were significantly different from grade 2 in junior high school on the total fixation time and count, but no difference was found between grade 2 in high school and grade 2 in senior high school.3,Different materials had a great effect on student's performance and eye movement patterns, and the effect of patterns is the same. In all materials, differences were found in total fixation time and count, average pupil diameter, average fixation duration and saccade amplitude.The differences as above showed that the reasoning ability of students was gradually enhanced from pupils to grade 2 in junior high school. The reasoning occurred from simple material to complicated one.4,Whatever the complexity of subjects changed, pupils tended to use perceptual operation strategy, while, students in grade 2 in junior high school and grade 2 in senior high school would change strategy according to subjects. They used analytic strategy more when they met complex materials.