Chapter 571

But as a child, his usual range of activities is very small, and there are few people he knows except his relatives. If he doesn't want to be alone, Lu Ming becomes his best choice.

Lu Ming doesn't care about coming home to play.

Their family has been busy since childhood, and Shi Xiaorui has restrained herself a little in recent years. She doesn't pick up people at home. Otherwise, with the house she lives in, she can't live any more.

An Chang hasn't been to Lu Ming's home for a long time. When he finds that there are several more people in Lu Ming's home, he can't help but ask, "I don't think there are many people coming from your family's medical school. Should they not make much money? How many more people have been added to your family? "

An Chang has a good memory. Jin Miao and Qi Sanniang didn't have it when they came here. They must have just come here.

When we think about Shanxia in Lu Ming's family, an Chang can't help suspecting: "are those elder sisters in your family..."

Lu Ming couldn't help but give him an elbow: "what do you think? It's all the people my mother saved, because there's no place to go, so I'll stay at home. In addition, our family must not worry about food! "

Lu Ming is young, and Lu Shao and Shi Xiaorui don't want him to think too much when he is young. They have never told him about the source of his family's income and so on. Although they are not rich, because they have no worries about food and clothing since childhood, Lu Ming's character is obviously more confident and open than that of Jin Miao. It's not obvious to look at it alone, and the difference will come out when we look at it together.

He said casually that a child who is young and has never experienced real suffering can't really understand the life of the poor. However, Lu Ming never goes to school wearing worn-out clothes. His appearance is always clean and tidy. His home should be really good.

An Chang follows Lu Ming to see Shi Xiaorui first.

Shi Xiaorui is taking exams for Jin Miao, Lu Xiran and Su Wan. She has taught several children simple multiplication a few days ago. Now it's time to check the progress of her study. When learning multiplication, Lu Xiran couldn't cheat by counting. He could only remember it with frown, which was very painful.

An Chang is always clever in front of the elders. Shi Xiaorui also likes this child who has a lot of manners. She even asks Shanxia to serve them snacks.

An Chang sits on the chair and looks at the three people who are writing on the paper with charcoal pens. He asks Lu Ming in a curious voice: "what are your sisters holding in their hands? Are they writing? Why don't they use a brush? "

Lu Ming, who was used to charcoal at home, explained to an Chang, "that's charcoal. Haven't you seen it? The words written with charcoal pen are very small, which saves paper. My sisters are learning mathematics. It's too wasteful to write with a brush. "

"Mathematics?" An Chang asked, "what's good about math?"

Because the imperial examination did not test arithmetic, so unless they were interested, no one would take the initiative to add trouble to themselves, adding a course.

But looking at Lu Xi Ran's frowning, it's obvious that she doesn't like mathematics.

"There are many advantages in learning mathematics." Lu Ming said: "my mother said that learning mathematics can cultivate a sense of logic, which is very good for the future. Besides, after learning mathematics, at least we can use it in our daily life."

What is logic

This question stuck Lu Ming's question.

No matter how smart and young he is, he can only feel vaguely the meaning of logic, and can't describe it accurately in language.

Shi Xiaorui heard what they said and said with a smile: "that's a law of thinking. It's like seeing a flower. Some people think of spring and some people think of fruit. Different ways of thinking can bring about different changes, which can form different rules. That's logic. "

An Chang is still a little confused, but Shi Xiaorui's example is simple, and he understands it all at once.

"That is to say, after understanding a person's logic, I can guess what he will associate when he sees something?"

"You can say that." Shi Xiaorui thinks that Lu Ming's classmate is very quick to respond. She is not confused by a long paragraph of her words. It can be seen that her own logical thinking is also very good. She is a child prodigy similar to her son.

An Chang didn't expect that Shi Xiaorui had pasted a child prodigy label on him in his heart, and still asked: "I don't think arithmetic is usually used much, is it necessary to learn?"

Shi Xiaorui also understands this problem very well.

All the students who have been tortured by mathematics have a problem in mind.

If you don't engage in a career related to mathematics in the future, after so many years of learning mathematics, the most commonly used methods are addition and subtraction and simple multiplication and division. In daily life, no abnormal boss will add water to the pool and discharge water at the same time. How much will the water charge increase? No boss with a normal brain would do such a thing!

The question of safety makes Shi Xiaorui speechless, but she is still strong to hold on: "don't think so, good at mathematics, it's also very interesting!"

An Chang is still not interested. Today, he plans to have a good day. He doesn't want to learn anything. However, Lu Ming's sister looks so pitiful that she has no spirit to learn. Now her sister is eating and playing with Han every day, and she is living a carefree life like a pig. In contrast, Lu Ming's sister is living in dire straits.

"Does your sister have to study like this every day? Your mother looks beautiful and gentle, but is she so strict? " An Chang asks Lu Ming in a small voice.

Lu Ming also answered him in a low voice: "that's because my sister wants to be a female general in the future. My mother said that a general should learn more, at least more than the people under him. Otherwise, people would be unconvinced, so she would not be a general."

As a native, an Chang also knew that there had been female generals in the previous dynasty, so he didn't make a fuss about Lu Xilan's ambition. He just said, "your sister is so powerful. It's much more difficult to be a general than to be a scholar."

Lu Xilan sat close to them, and her ears were sharp. She immediately heard what an Chang said. She immediately felt that her brother's classmate had more vision than him, and she knew that she was more powerful!

With the affirmation of this sentence, if Lu Xilan had the help of God, he soon finished the last two questions of the paper in his hand and handed in the paper immediately.