智障儿童各方面的思维活动大大落后于正常的同龄孩子,对他们来说,学习数学是一件很不容易的事,特别是重度智障学生,就算经过多年的课堂教学,最简单、最基础的数学知识依然很难习得。在教师的千遍万遍教学之下,有些学生好不容易学会了知识,却不会将其运用于现实的生活之中,教学效果不尽如人意,有些教师甚至放弃了让重度智障生学习数学。但是,数学知识在实际生活中运用很多,要提高重度智障学生今后的生活质量,很多常用的数学知识非学不可,并且要学有所用。数学源于生活,启于生活,应用 Mentally disabled children in all aspects of thinking activities lag far behind the normal children of the same age, for them to learn mathematics is a very difficult task, especially for children with severe mental retardation, even after years of classroom teaching, the most simple and most basic Mathematical knowledge is still very difficult to learn. Under the teacher’s a thousand times of teaching, some students finally learned knowledge, but will not be applied to the real life, the teaching effect is not satisfactory, and some teachers even gave up to allow students with severe mental retardation to learn mathematics . However, mathematical knowledge is widely used in the real life. To improve the quality of life of the severely mentally retarded students in the future, many commonly used mathematics knowledge can not be learned and must be learned. Mathematics from life, life, application