Abstract
This paper presents a serious game called VirtualMat. It is a Virtual Reality (VR) system designed to support the teaching of logical-mathematical concepts for students with intellectual disability. In this game, VR techniques were used in order to investigate its feasibility as a support tool for these students. The game was validated by special education professionals and tested by 15 students with intellectual disability from two inclusive schools. The results indicate that the game contributes to the student learning process by allowing the development of mathematical reasoning in an enjoyable and active way.