菱形在日常生活中不太常见,我们可以用身边的纸,采用不同方法折出菱形,通过直观形象来增强对其性质的理解.这里的纸是通常的矩形纸张.下面就与同学们分享几种折法:一、将纸左右对折后,再上下对折,得到矩形AGHE(如下图1(1)、(2)).剪下一个以H为直角顶点的直角三角形EPH(如图1(3)),展开后可得菱形EPE’P’(如图 Diamonds are less common in everyday life, we can use different methods around the paper, diamonds off, through an intuitive image to enhance their understanding of the nature of the paper here is the usual rectangular paper. Below to share with the students a few Fold method: First, the paper folded right and left, and then fold up and down to get rectangular AGHE (Figure 1 (1), (2)). Cut a vertical triangle HH right triangle EPH )), Expanded to obtain diamond EPE’P ’(Figure