A joke pieced together with a jigsaw puzzle

/kloc-One of the most popular jigsaw puzzles in the 0/9th century is the jigsaw puzzle. The popularity of jigsaw puzzles is probably due to its simple structure, simple operation and easy understanding. You can use jigsaw puzzles to spell out your own designs at will, but if you want to use jigsaw puzzles to spell out specific patterns, you will encounter real challenges. This is the fun of jigsaw puzzles.

The simple structure of a jigsaw puzzle can easily make people think that it is easy to solve its problems. In fact, this idea is one-sided. With puzzles, you can spell out more than 1600 patterns, some of which are easy to spell, some are quite mysterious, and some are specious and full of contradictions.

Tangram was invented by working people in ancient China. It was invented in the early years of the Ming Dynasty and was widely circulated among the people in the Ming and Qing Dynasties. "Leng Lu Miscellaneous Knowledge" wrote in Volume 1 that "there are seven ingenious maps in modern times, with five shapes and seven changes. The object is small and changeable, and the tools of the game are enough to dispel boredom and break the silence. "

I don't know when the "seven splints" spread abroad and were welcomed and valued by them. Needham said it was one of the "oldest pastimes in the East". Up to now, the library of Cambridge University in the United Kingdom still treasures the "seven splints". American writer Edgar Allan Porter refined a jigsaw puzzle with ivory. Napoleon used puzzles as a pastime during his exile. Who would have thought the jigsaw puzzle would be with Napoléon Bonaparte? In fact, they are all fans of jigsaw puzzle.

There are many original sayings about the name of Tangram:

1. From the abandoned English word "trangram": a strange-looking gadget;

2. From the Tang Dynasty (China Tang Dynasty) with the suffix-gram (Greek meaning works);

3. It comes from the term "tanka", which means people on coastal ships. In the process of ferry transportation, besides food and laundry, they also provide some entertainment. Among them, there is this China puzzle made up of seven boards. The word jigsaw puzzle evolved from tanka game.

All these statements seem to have some truth.

Probably the original Tangram's strong interest and its entertaining explanation inspired the literary creativity of Sam Lloyd, a famous American puzzle solver. In 2003, at the age of 6 1, he wrote in his eighth tea cover book: "According to the introduction of the encyclopedia, the jigsaw puzzle game has a very old origin. In China, it is an entertainment toy.

China's development process

1. The Picture of Yan Ji in Song Dynasty → The Story of Butterfly Wing in Ming Dynasty → Tangram from early Qing Dynasty to modern times.

Yanjitu-Tangram was originally named "Yanjitu", which means to entertain guests. Huang, a scholar in the Northern Song Dynasty, initiated this idea. He first designed six rectangular tables, which can be adjusted according to the number of guests at the banquet, and then added a small table. When all seven tables are put together, they will become a big rectangle, which can be changed infinitely when combined with modern jigsaw puzzle separately.

Butterfly Wings-Later, according to the principle of "swallowing several figures", Geshan in Ming Dynasty designed "Butterfly Wings", which were composed of thirteen different triangular figures, which were combined into the shape of butterfly spreading wings, and after being separated, they could be combined into more than 100 kinds of figures.

Tangram-The modern tangram is developed on the basis of "the picture of a beautiful girl" and "the butterfly girl".

Benefits and uses

Tangram has numerous benefits and uses. The following are the benefits and uses of Tangram: shape concept, visual discrimination, cognitive skills, visual memory, hand-eye coordination, encouraging openness, spreading thinking and creating opportunities.

Tangram is a good partner to inspire children's intelligence in both modern and ancient times. It can connect children with the bridge between objects and forms, cultivate children's observation, imagination, morphological analysis and creative logic, and has great development space.

Now it is widely used by parents to help children learn basic logical relations and mathematical concepts, which can help children understand the meanings of various geometric figures, numbers, perimeters and areas, Pythagorean theorems and so on.

Tangram can also teach children to recognize colors and guide them to understand the division and synthesis of graphics, thus enhancing their hand intelligence, patience and observation. It can also be used to tell stories. Dozens of jigsaw puzzles can be connected into a series of pictures and told to children like cartoons. First spell out a few cats, a few dogs and a room, and then tell a wonderful and touching story.