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培养盲生空间观念有着重要的现实作用,不仅有助于盲生中学几何课的学习,发展空间思维能力,还有助于盲生更好地认识、理解生活空间,更好地生存与发展。在课堂教学实践中结合新课程理念,在案例积累的基础上,探索思考发展盲生空间观念的几种方法:立足于学生的生活经验和已有的数学活动经验感悟,在图形概念中领悟,在“体”“面”转换中感悟,通过代数关系表述几何问题的方法领悟。
It is of great practical significance to cultivate the idea of space for blind students, which not only helps the learning of geometry class in blind middle school and develops the ability of thinking in space, but also helps blind students to better understand and understand living space and better survive and develop. In the classroom teaching practice combined with the concept of new curriculum, based on the accumulation of cases, explore ways to think about the development of blind space concept: based on the students’ life experience and experience of existing mathematical activities in the understanding of the concept of graphics, In the “body ” “face ” conversion sentiment, express the method of geometric problems through algebraic relations.