? The use and application of jigsaw puzzle can cultivate our divergent thinking ability, shape concept ability, improve our coordination ability and brain imagination and thinking ability. This intellectual toy can make the shape imagined in our mind become something visible to the naked eye in our reality, connecting our imagination and reality, which is very good for children's intellectual development. It can also develop people's intelligence, imagination and creativity, open people's brain thinking, and thus develop our brain's ability. At the same time, the name Tangram still has many stories. It is said that the Tangram was invented by the working people in ancient China, and it was not basically finalized until the Ming Dynasty. In ancient times, the Tangram was widely circulated among the people and quoted in the Qing Dynasty? In the file of Lu Yiqing's "Cold and Miscellaneous Knowledge", it is written that there are seven clever pictures in the near future, with five forms and seven numbers, and its changing forms are as many as a thousand. Things are small in shape, changing at will, and covered with games, which is full of boredom and silence, so secular people like it. ? That's how such a toy is named Tangram, which is an allusion to Tangram. Tangram, an intellectual toy, spread to Japan, Europe and other foreign countries in the Ming and Qing Dynasties, so there are many stories about Tangram in foreign countries. At the same time, there are many sayings about the name of Tangram. First of all, words from abandoned English? tangram? In our current translation, it is? Strange gadgets? . All the above statements have some truth, and these are the sources of the name of Tangram.