10 in late October, a primary school Olympic math problem was spread on the internet, and the strange problem-solving method made a large number of netizens call it? Insanity? . Eight matches are placed in two diamonds, only two of them can be moved. How to turn two diamonds into one diamond? Answer: Move two matches at the bottom of a diamond and change them to? 1? And then what? Answer? Two words, read together? 1? .
The one that was forwarded by hundreds of thousands of netizens on the Internet? 1? Yin's topic comes from the website of Xuesisi Online School, in a website called? Example explanation of synchronous perfect score courseware for primary school mathematics. In the video, a male teacher named Cui stands in front of the screen, and the electronic blackboard behind him reads? Weekly negative questions? . In the video, Teacher Cui enthusiastically explained how to solve a math problem by solving a Chinese problem, and finally got it. 1? At this time, Teacher Cui couldn't help laughing. After watching this video, many netizens commented that the questioner had gone too far? Insanity? The topic has also been dubbed by netizens? Irregular exercise? Mathematical problems.
Intrinsic meaning
? Yin asked questions? It involves many disciplines such as Chinese, mathematics, history and chemistry. A staff member working in a publishing house revealed that he had been a teacher for several years and a volunteer teaching assistant for several years. Yin asked questions? , mostly arranged in the extracurricular practice of synchronous teaching AIDS in primary and secondary schools (especially primary schools).
? The counseling books that give these questions mostly introduce children's yin questions by expanding their thinking and intelligence. ? Ms. Cha, a fourth-grade math teacher at Lhasa Road Primary School in Nanjing, said that she had met students asking them for similar advice. Yin asked questions? . Some problem-solving methods are exaggerated to the point that teachers feel it? Can't stand it? .
Teacher Ge of Lhasa Road Primary School in Nanjing bluntly said, what's the problem? There is no teaching significance at all, and she does not advocate that primary school students do too many unusual math problems.
Take? The diamond problem? For example, Mr. Ge said that this is a graphic problem, and the correct way to solve the problem must be to transform one graphic into one or more graphics, and the characteristics of the graphics must be in it before it can be called a graphic problem. Use? 1? To answer, not to train the so-called reverse thinking? On the contrary, the topic has deteriorated, which is a concept of stealing.
Examples of classical yin problems
1. How many brothers does Aladdin have? A: Three (Allah A, Allah B, Allah C).
2. One person has three, two people have four, three people have five, four people have seven, and five people have six instead. What is this? A: The number of strokes.
Cui Balloon keeps a herd of cows at home. One day, the fence was broken and the calf ran out. What should I do? Enter a singer's name! Answer: Wang Leehom (slams in).
Xiao Ming came back from fishing. Xiaoling asked him how many fish he had caught. Xiao Ming replied: What a lot of fishing! Six have no heads, nine have no tails, and eight have only half bodies. ? Do you know how many fish Xiao Ming caught? A: 23 or 0 fish.
5. What is four-finger bending? Answer: Wonderful. Bend your fingers, four with yes, four in English, homophonic and wonderful.
Although this kind of negative question seems interesting, it actually has no more meaning and can be properly understood, but there is no need to pay too much attention or walk into a dead end.