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七巧板是中国的一种拼板玩具。它是由七个平面几何图形板块组成的,也可以看做是将一个正方形分割成七个平面几何图形(见图),其中有五个等腰直角三角形,一个正方形,一个平行四边形。世界上有各种各样的拼板玩具,多数是板块繁多。我国的七巧板则与各国各类拼板不同,其巧就巧在板块数固定为七块,各块的形状大小也固定不变,却能拼摆出数千种图案来。我国的七巧板在世界上有很大的影响,清朝嘉庆年间(1796-1820年)出版了第一批关于七巧板的书籍。1805年,欧洲最早出版的《新编中国儿童解谜游
Tangram is a kind of puzzle toy in China. It consists of seven planar geometry plates, which can also be considered as a square divided into seven planar geometries (see Figure), with five isosceles right triangles, a square, and a parallelogram. There are all kinds of puzzle toys in the world, most of them are numerous plates. China’s jigsaw puzzle is different from all kinds of puzzle boards in various countries. The skill of Qt is that the number of plates is fixed to seven, and the shape and size of each block are also fixed. However, thousands of patterns can be put together. The tangram in our country has a great influence on the world. The first batch of jigsaw puzzles was published during Jiaqing period (1796-1820) in the Qing Dynasty. In 1805, Europe’s earliest published “New China children’s puzzle tour.”