The Research and Realization of VR for The School-based Textbooks of school for the Mentally Retarded

Education has always been the focus of national attention, and special children education is a very important part of the education industry. Traditional education forms lack interest and immersion, making it difficult for these special children to truly understand a piece of knowledge. With the development of science and technology, virtual reality (VR) technology has entered people's field of vision, and “VR + education” has become the focus of attention. This article focuses on special children with intellectual deficiencies, and uses the characteristics of VR to design an educational VR software system that is easy for students to understand. Using C# language to write programs to achieve human-computer interaction, two virtual scenes with a high degree of realistic reproduction were created through Unity3D. In the scenes, there are four classes: math class, Chinese class, English class and life class. It also has an examination function and gives feedback on the results of the examination. The software system has a good feedback mechanism, which allows teachers and parents to understand the children's learning situation in time. The system can complete a series of complex human-computer interaction functions, truly combine virtual and reality, relieve fatigue through children's physical or psychological transfer behavior, and help children truly achieve efficient learning.