The learning of geometric concepts by Visually Impaired People (VIP) is a huge challenge. This paper presents a new dynamic computer-based environment for the learning of geometric concepts through adaptive technology. A case study on learning of geometric concepts in VIP classrooms using the proposed environment is detailed. Several experiments carried out with signed subjects (control group) and VIP subjects (experimental group) using the proposed method is also discussed. The results of this case study have shown that: i. the learning of geometric concepts by the VIP students was done through a peremptory and autonomous way; ii. the VIP students improved their ability to learn, retain and apply obtained concepts in other contexts; iii. the environment innovated the VIP geometry learning and increased their logical reasoning iv. the continuous use of the environment have enabled them to improve their spatial positioning and motions; v. the environment exhibited a superior performance than the classical geometry teaching in VIP classrooms. The main result of the experiments is that VIP students required (in average) only 20% of the time that was required in classical classes for solve correctly all proposed exercises.
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