All-in-one Sign

A little sister was hung on the clothes hanger. Her hands and feet naturally drooped, and she twisted her waist and swayed from time to time.

"Swing, swing..."

Xiaoxiao murmured in a sweet voice as she started playing with herself. Seeing how she was enjoying herself so much, she didn't feel the slightest bit aggrieved about being punished.

Xiao Qingzi, who was sitting in Xu Ang's arms, cast worried glances from time to time. She was worried about her sister Xiaoxiao.

"Here, left hand."

Xu Ang signaled the little sister to change her hand, and Xiao Qingzi obediently stretched out her left hand so that her brother could cut her little nails.

"If your nails are long, you should cut them. If you don't know how to cut them, tell your brother. He will come and cut them for you. Look at you, you are scratching your skin."

Blowing at the conspicuous red mark on Xiao Qingzi's pink little arm, Xu Ang was educating the little guy.

Children's skin is very delicate and can be easily injured by contact. However, they tend to scratch unconsciously. If adults don't pay more attention to them, they can easily injure themselves.

If Xu Ang hadn't found scratches on Xiao Qingzi's arms when he was holding her, he wouldn't have noticed this.

"Well, Xiao Qingzi will tell her brother in the future."

Nodding her little head obediently, Xiao Qingzi tried to plead with Xiaoxiao.

"Brother, just let Sister Xiaoxiao go."

Without saying yes or no, Xu Ang cut Xiao Qingzi's nails first, and then carried her to the clothes rack.

Then, he hung up Xiao Qingzi as well.

Xiaoxiao: "???"

Xiao Qingzi: "???"

The two little sisters had question marks on their heads, not understanding what was going on. Especially Xiao Qingzi, she didn't do anything bad, so why was she punished by her brother.

After chewing on the two little sisters' little faces for several times, Xu Ang said to them: "Xiaoxiao scolded my brother before, and he asked her to reflect for half an hour. Xiaoqingzi, you have to plead for Xiaoxiao, and my brother decided to take the punishment time." It will be shortened by half, but you will be punished with Xiaoxiao."

Isn’t it asking for love, isn’t it because of the deep love between sisters, then let’s hang the southeast branches together.

It just allows you to share hardships and cultivate more relationships.

"Oh well."

Xiao Qingzi had no objection at all, and she even smiled silly at Xiaoxiao: "Sister Xiaoxiao, I'm being punished too."

Don’t you think it’s honorable to be punished, kid?

He gently poked Xiao Qingzi's face with his fingers. It was soft, smooth and elastic. Xu Ang was about to poke Xiao Gouzi's face, but Xiaoxiao opened her mouth and exposed her baby teeth, threatening to bite you if you dare to poke her. Sisi suddenly came out from the side.

"Brother Xu Ang, here I am, here I am, and here I am."

Si Baobao jumped anxiously next to Xu Ang and signaled to Xu Ang: Look here, there is a little sister here who has not been hung up.

"you?"

Xu Ang glanced at her and asked her: "Have you finished your homework? Have you solved the advanced math problems I assigned you? How many pages of calculus have you read? Where are your thoughts on the overview of geometry? Bring it to me."

The series of soul torture made Sisi's little face fall instantly. She whispered: "I've done it, I've done it all."

I did it, but the question was difficult.

At least Sisi felt the difficulty. What Xu Ang said was much more difficult than the questions in the high school textbooks she had read before.

In the past, Sisi could easily learn all the books that she read, but starting from advanced mathematics, and then to the calculus that Xu Ang recently introduced her to, Sibaobao began to scratch her head. These new knowledge made her bald.

Xu Ang had privately thought about how long Sisi's hairline would last.

After checking Sisi's homework, Xu Ang found that the girl was indeed talented in mathematics, and she could actually keep up with the relevant courses in her freshman year at Peking University.

Although it was a bit difficult to follow up, and she obviously didn't learn math as fast as middle school and high school, Xu Ang knew that this was just because Sisi was not used to the sudden increase in knowledge points in college courses, and that she would be fine once she got used to it.

Closing Sisi's homework book, Xu Ang was thinking: Should he go to the school's mathematics department to give Sisi some more professional courses?

Looking through her homework, Sisi asked: "Brother Xu Ang, why are you writing this?"

Just do math problems. Why should you write about your experience of reading a book? This is not fun at all.

Sisi would rather do a few more calculus questions than write this.

Touching her little head, Xu Ang said to her: "The real purpose of learning mathematics is not to solve the questions. Doing the questions is just a means to achieve the goal. Baby Si, you know that learning mathematics is like the word fennel for fennel beans, which has four Any way to write it?”

Sisi shook her head.

What are fennel beans? It sounds like something to eat. Is it delicious? Is it sweet and delicious?

"The first level of learning mathematics is the foundation, which is to memorize the formulas in the book. It will be no problem to pass the exam at this level. The second level is to summarize, prepare a wrong question book, write down all the questions you have done wrong in it, and then Set a time for yourself to take out the wrong questions and redo them every time. When doing the questions, you can't just do the questions. The key is to sort out the knowledge points on the wrong questions. You need to sort them out and try to redo them every time. You can master one more knowledge point. The third level is proficiency. You have to practice the after-school exercises in the book and the questions written in the wrong question book to deepen your impression by doing them many times. , you can achieve excellent math scores and be able to cope with the entrance examination.”

"What about the fourth floor?"

Sisi asked, raising her little head.

She likes mathematics. Brother Xu Ang is better than her. She is willing to

I want to ask brother Xu Ang for advice. If it were anyone else, such as her sister Liu Ruoxi, Sisi would not listen to her.

"The fourth level is mathematical logic. Mathematics is the foundation of the modern scientific system. It has complete and rigorous logic. If you want to go further while achieving the first three points, you must understand the logic of mathematics. This is the same as economics. There is a truth. Only when you understand its underlying logic can you see through the phenomenon and see the essence. No matter how things change, you can know what is happening and why. Instead of looking at today's regulation, tomorrow's interest rate cut, and the day after tomorrow, there will be rumors of an interest rate cut. , I was confused, and I didn’t know whether I should enter the venue, and if so, when.”

"What?"

Sisi was confused.

Xu Ang said to her: "Brother asked you to write down your experience after reading this overview of geometry. It is not to ask you to do exercises, but to let you understand how the person who wrote this book views mathematics and how to think about mathematical problems. It is not just this. One book, and I will give you more theoretical books to read in the future, and you will need to write about your experiences in those.”

Sisi looked horrified.

She had a sad face and almost didn't cry to Xu Ang on the spot.

Rather than write about her feelings after reading the book, she would rather hang it on a clothes hanger.

If I had known this would happen, I wouldn't have jumped out to gain a sense of presence.

"Baby Si, come here and let me hug you."

Xiaoxiao saw that Sisi's eyes, nose, and eyebrows were all wrinkled. She wanted to comfort Sisi, encourage Sisi, and let her be a strong baby Sisi.

My brother even wants to bully my baby, he is so bad.

Xiao Gouzi was muttering.

In order to prevent Baby Si from being bullied and crying, and then being found out by her mother and hitting her brother's palm, Xiaoxiao is determined to coax Sisi well.

The elder brother is ignorant and the younger sister is annoyed to death.