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Song Qingwu pointed at the question and said to Zhang Jia, "Jia Jia, you have to stand at a high level and look at each question with a comprehensive perspective. Although this question is from the first chapter, if we introduce the derivatives we will learn later into this question, all the difficulties will be solved."

Seeing Zhang Jia's confused look, Song Qingwu smiled and said, "Jia Jia, give me a pen. I'll write down the questions first so I can explain them to you better."

Zhang Jia handed the pen to Song Qingwu and asked, "Do you want some draft paper?"

Song Qingwu shook her head, "No need!"

After saying that, he put the test paper on the coffee table and started writing directly on Zhang Jia's test paper.

It took less than a minute to finish. Zhang Jia leaned over to take a look and found that the answer he calculated was exactly the same as the one handed out by the teacher.

The teacher sent the answers but not the process.

Zhang Jia couldn't help but sigh, "Qingwu, you are really amazing. There are only a few people in the whole college who can solve the problem, but you don't even need to think about it, you don't even need a draft paper, you can just take a look and come up with it."

Seeing Song Qingwu's smooth performance, Zhang Jia's mother finally realized how amazingly capable this best friend of her daughter, who always convinced her daughter and won her endless praise, was.

You have to know that the question that Song Qingwu wrote out so easily in less than a minute was not a simple question, but a question that only a few top students in the key classes in the entire college could solve after racking their brains after much thinking.

During the whole process, Song Qingwu did not hesitate or pause at all. She did not even need any draft paper. She wrote down the topic completely and calmly.

Even Shu Xiaoya, a top student who was admitted to Jiangshi University, admired Song Qingwu even more. She had read Song Qingwu's composition and was impressed by her Chinese ability. However, Shu Xiaoya was also a top student in math and English. The reason why she did not get into Peking University or Tsinghua University was that she only scored 120 points in Chinese and missed the chance to go to Peking University or Tsinghua University. She always felt that her math should be no worse than Song Qingwu's.

But now she found the gap between herself and Song Qingwu. A popular saying on the Internet was a true portrayal of the difference between her and Song Qingwu. She scored over 140 points because her level was only over 140, while Song Qingwu scored 148-19 because the full score was only 150, and teachers usually didn't want students to get full marks in exams.

Seeing that Song Qingwu finished the question easily, Zhang Jia's mother continued to cut the cantaloupe. She handed a piece of cantaloupe that had been peeled and pierced with a plastic skewer to Song Qingwu, "Qingwu, eat a piece of cantaloupe first and take a break. Don't rush to explain to Xiaojia, let her take a look first. This child, he didn't even let you take a break after dinner."

Song Qingwu took it and said, "Thank you, Auntie!"

Zhang Jia took the test paper, looked at it for a while, thought about it, and ran to the room to get the draft paper. He wrote and drew on the paper for a while, and finally said to Song Qingwu with a little apology, "I'm sorry, Qingwu, I understand most of the process, but there are two steps in the middle that I don't understand. I need you to explain it to me."

Song Qingwu had finished eating the cantaloupe. She wiped her hands, picked up Zhang Jia's draft paper and took a look. Before Zhang Jia asked, she knew which two steps Zhang Jia didn't understand, and she carefully explained them to Zhang Jia.

Until Zhang Jia completely understood.

Seeing that Zhang Jia finally understood, Song Qingwu smiled and nodded, then continued, "Jia Jia, for mathematics and physics, understanding is only the most basic step in learning, and applying what you have learned is the most important part. I'll give you a similar question, and you try it first. If you can solve it, you have mastered half of the knowledge."

After that, she wrote a new question on the draft paper in her beautiful handwriting, handed it to Zhang Jia, and said, "The difficulty of this question is similar to the one I just talked about, and the knowledge points are also the same. I made it up temporarily, you try it."

Seeing that Song Qingwu had neither flipped through books nor looked up any information, but could easily create a question in her mind that matched the final question she had just talked about, Shu Xiaoya and Zhang Jia's mother finally realized how terrifying Song Qingwu's strength was.

With regard to these two points of knowledge, you have already mastered them to the point where you can use them effortlessly.

Because the coffee table is not much higher than the sofa, Song Qingwu can easily write the questions on the coffee table because one minute is enough. Zhang Jia does not have Song Qingwu's ability. It takes more than ten or twenty minutes to do a question. If he writes on the coffee table like this, his waist will break. So Zhang Jia took the questions to the room to write.

Zhang Jia's mother said apologetically, "Qingwu, you have delayed your study time again. Xiaojia is always bothering you. Auntie wanted you and your cousin to take a break and come to my house for dinner, but I didn't expect to bother you instead."

Song Qingwu smiled sweetly, "It's okay, Auntie. Good friends should help each other. Besides, I didn't plan to study this afternoon. There's no TV at home. I haven't watched TV for a long time. It's relaxing to watch TV at Auntie's house."

What a sensible and good child.

Such a child is polite and willing to help his own children. What parent would not like him?

When Zhang Jia's mother heard Song Qingwu say that she hadn't watched TV for a long time, she quickly handed the TV remote control to Song Qingwu and said, "Good child, choose whatever you want to watch. It's okay to turn up the volume. The soundproofing in Auntie's house is pretty good and it won't affect Xiaojia's studies.

If you want to watch TV in the future, you can also go to Auntie’s house to watch it.”

Song Qingwu knew that Shu Xiaoya liked to watch variety shows and she used to watch them on her mobile phone, so she chose a variety show from a Vietnamese provincial TV station and the three of them watched TV together.

After a while, Zhang Jia came out, and Song Qingwu asked, "Have you finished the question?"

Zhang Jiaxi smiled happily, "Well, Qingwu, I admire you so much. After listening to what you said, I felt like I had an epiphany."

After that, he showed the question to Song Qingwu, who nodded, "You have only learned half of this knowledge."

Zhang Jia asked, "Why did you learn only half of it?"

Song Qingwu smiled and said, "Because I just taught you this knowledge, and I also said when I asked you to use this idea and this knowledge, so you can immediately think in this direction.

Unless you can immediately think of this knowledge point when you see an unfamiliar question and not confuse it with other knowledge points, you can be considered to have truly mastered this knowledge point. "

Zhang Jia stuck out her tongue and said, "Qingwu, you really look like a teacher. If you were a teacher, you would definitely be the best teacher."