在高中立体几何六十八节“正多面体的作法”里面,讲到各种正多面体的作法,都可从正六面体引出。从各种正多面体的作法,可看出正多面体相互间的关系,为了加强学生对正多面体相互关系的认识,我们特地设计自制了一套模型来进行教学演示,既加深了学生的学习兴趣;也给他们留下正多面体互相关系的深刻印象。我们觉得这个经验尚有推广的价值,特把它介绍出来,以便各友校同志们仿制试用。这套模型用来说明正八面体、正六面体、正十二面体、正二十面体四种正多面体相互间的关 In the sixty-eighth chapter of the high school solid geometry “The practice of polyhedrons”, the various regular polyhedron practices can be derived from the regular hexahedron. From the various regular polyhedron practices, we can see the relationship between the polyhedrons. In order to strengthen the students’ understanding of the polyhedron’s mutual relations, we have specially designed and created a set of models to demonstrate the teaching, which has deepened students’ interest in learning; It also left them with a deep impression of the polyhedron’s mutual relationship. We feel that this experience has the value of promotion. We will introduce it specifically so that the comrades at the Friends School can imitate the trial. This set of models is used to illustrate the relationship between four regular polyhedrons: positive octahedron, regular hexahedron, regular dodecahedron, and regular icosahedron.