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Math diary second grade handwritten newspaper
Gauss

Gauss is a German mathematician, physicist and astronomer.

When Gauss was born, he was curious about all phenomena and things and determined to get to the bottom of it. At the age of seven, Gauss went to school for the first time.

A story that is widely circulated all over the world says that when Gauss was 10, he worked out the arithmetic problem that Butner gave his students by adding all the integers from 1 to 100. Butner gave the children a difficult addition problem at that time: 81297+81495+865438+. After that, Gauss also finished the calculation, and handed in the slate and the answer together. Only his answer was correct at that time. Mathematical historians tend to think that Gauss had mastered arithmetic progression's summation method at that time. For a child as young as 10, it is unusual to discover this mathematical method independently.

Gauss's academic position has always been highly respected by people. He has the reputation of "prince of mathematics" and "king of mathematicians".

Mathematical story

One day, the Tang Priest told his disciples Wukong, Bajie and Friar Sand to go to Huaguoshan to pick peaches. Before long, the three disciples returned happily after picking peaches. The Tang Priest asked, "How many peaches did each of you pick?"

Pig said with a silly smile, "Master, let me test you. Each of us took the same amount of money. There are less than 65,438+000 peaches in my basket. If we count three peaches, there are 1 peach left in the end. You calculate, how many have we picked each? "

Friar Sand said mysteriously, "Master, I'll test you, too. If there are four peaches in my basket, there is 1 left in the end. You calculate, how many did each of us choose? "

Wukong smiled and said, "Master, I'll test you, too. If there are five peaches in my basket, there will be 1 in the end. Do the math. How many did each of us choose?

Tang Priest quickly said the number of peaches he had picked. Do you know how many peaches they each picked?

Interesting math science tips are as follows:

I. Arabic numerals

Arabic numerals were invented by ancient Indians and later spread to Arabia and Europe. Europeans mistakenly thought it was invented by Arabs, so they called it "Arabic numerals". Because it has been circulated for many years, people call it Yi, so people still mistakenly believe that these numerical symbols invented by ancient Indians are called Arabic numerals.

Second, 99 songs

Jiujiuge is the multiplication formula we use now. As early as the Spring and Autumn Period and the Warring States Period BC, Jiujiu songs have been widely used by people. In many works at that time, there were records about Jiujiu songs. The original 99 songs started from "99.8 1" to "22.24", with 36 sentences. Because it started with "998 1", it was named 99 Song.

The expansion of Jiujiu Song to "One for One" was between the 5th century and10th century. It was in the 13 and 14 centuries that the order of Jiujiu songs became the same as it is now, from "one for one" to "9981". At present, there are two kinds of multiplication formulas used in China. One is a 45-sentence formula, usually called "Xiao Jiujiu"; There is also a sentence 8 1, which is usually called "Big Uncle Nine".

Third, Mobius ring

Mobius ring is a topological structure with only one face and one boundary. You can twist a piece of paper into 180 degrees, and then stick the two ends together to form a Mobius ring.

Cutting Mobius ring along the midline can get a larger ring for the first time. The second time and after, you will get two nested rings every time. The middle will never break, which is also the magic of Mobius ring.