我们知道,正方体的展开图共有11种形式,在教学中,为了增强教学效果,通常用折纸法演示正方体的展开与折叠过程.若用几何画板演示,效果更为显著.现以如图2所示的一种展开图为例介绍其制法,供教学参考.【制作】1.新建参数t(单位:cm)为正方体的棱长, We know that there are 11 kinds of unfolding cubes in the square, in teaching, in order to enhance the teaching effect, the paper folding method is usually used to demonstrate the folding and folding process. If the geometry drawing board is used, the effect is more significant. Show a kind of expansion plan as an example to introduce its system of law, for teaching reference 【Production】 1. New parameter t (unit: cm) is the cube of the prism length,