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在初中数学学习中,学生大多接触的是平面图形,由平面图形过渡到空间图形,接受起来有一定难度.在立体几何教学中,如果教师能借助一些自制数学教具使空间图形问题转化为平面图形问题,那么立体几何中的空间图形知识就比较容易被学生理解和接受.因此,自制教具在数学教学中发挥着重要作用.在教学中,使用一些简单的自制教具,作为指导和帮助,可以弥补教辅工具的不足,提高学生的学习兴趣,可以使抽象的问题具体化.
In junior high school mathematics learning, most of the students are in contact with the plane graphics, the transition from the plane graphics to the space graphics, to accept a certain degree of difficulty.In the three-dimensional geometry teaching, if teachers can make some self-made math airspace graphics problems into plane graphics Problem, then the three-dimensional geometry of spatial graphics knowledge is easier for students to understand and accept.Therefore, self-made teaching aids in mathematics teaching plays an important role.In teaching, the use of some simple self-teaching aids, as a guide and help to make up Insufficient teaching aids, improve students’ interest in learning, you can make the abstract problem concrete.