Andriyani, I.K. Budayasa, D. Juniati
The blind student's interpretation of two-dimensional shapes represents the blind student's mental image of two-dimensional shapes that they can't visualize directly, which is related to illustration of the characteristics and number of edges and angles. The objective of this research is to identify the blind student's interpretation of two-dimensional shapes. This research was an exploratory study with qualitative approach. A subject of this research is a sixth-grade student who experiencing total blind from the fifth grade of elementary school. Researchers interviewed the subject about his interpretation of two-dimensional shapes according to his thinking.The findings of this study show the uniqueness of blind students, who have been totally blind since school age, in knowing and illustrating the characteristics of edges and angles of two-dimensional shapes by utilizing visual experiences that were previously obtained before the blind. The result can inspire teachers to design further learning for development of blind student geometry concepts. © Published under licence by IOP Publishing Ltd.
Mathematics Education, Universitas Ahmad Dahlan, Yogyakarta, Indonesia; Mathematics Education, Universitas Negeri Surabaya, Surabaya, Indonesia
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