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“空间与图形”是数学课程内容的四大领域之一,主要研究现实世界中物体和几何图形的形状、大小、位置关系及其变换,是人们认识和描述生活空间、进行交流的重要工具。随着年级的升高,学生在这块知识领域频频出错。究其原因是学生不善于在头脑中构建研究对象的空间形状和简明的结构,并能根据对实物所进行的一些操作,在头脑中进行相应的思考。如果教师平时在这方面不重视训练,就会对后继学习造成严重影响。因此笔者认为,当前“空间与图形”教学应
“Space and Graphics ” is one of the four major areas of mathematics curriculum content. It mainly studies the shape, size, location and transformation of objects and geometric shapes in the real world, which is important for people to understand and describe the living space and communicate. tool. As grades rise, students frequently make mistakes in this area of knowledge. The reason is that students are not good at building the space shape and the concise structure of the research object in their minds and can make corresponding thinking in their minds according to some operations on the physical object. If teachers do not attach importance to training in this aspect, they will have a serious impact on subsequent study. Therefore, I believe that the current “space and graphics ” should be teaching