"Hey, Mom." Lin Shi asked, "How are you buying the food, are you coming back soon?" ”

"Shishi, I didn't do anything at home with Wang Zi!" On the other end of the phone, Lin Mu's slightly ridiculous voice came.

"Mom! What nonsense are you talking about! What can we do...... We're just talking about learning. Lin Shibai glanced at Wang Zi, who had a bad face, and hurriedly said, her face couldn't help but start to get hot again.

"Hehe, girl, okay, your dad and I have to go to the supermarket to buy something, and we'll be back in about an hour, that's all." Lin Mu on the other end of the phone had already hung up the phone after saying this.

Lin Shi looked at the mobile phone whose screen had been dimmed, and was speechless for a while, her mother is too strong, she is really not afraid that this big ** will eat herself. Seeing Wang Zizheng looking at him with a smile on his face, he couldn't help but say angrily: "What do you see, big bastard." ”

"No! Didn't look at anything. I'm just thinking that we can go and review some homework, although you are very strong in learning, and I used to be a few streets, but now I can say very handsomely, those so-called problems are no different from 1+1 in my eyes. Wang Zi didn't blush at all and boasted.

"No positivity." Lin Shi listened to him boasting about himself like that with a blushing face and a heartbeat, he couldn't help but glance at him again, stuck out his tongue at him and said, "Come to my room." ”

This is the first time Wang Zi has visited the girl's boudoir, which is a suite. The room is quite large, in addition to a bed, a wardrobe, a desk, and a small sofa for two.

As soon as I entered the room, there was a faint fragrance that refreshed people's hearts. What made Wang Zi laugh dumbly was that Lin Shi's bed was full of rag dolls of different sizes, which was simply a child's room.

"Don't laugh." Lin Shi couldn't help but blush again, patted Wang Zi's shoulder, and came to the desk, which was naturally placed neatly, and it could be seen that Lin Shi was a very careful person.

There was only one chair in front of the desk, so Lin Shi went out and took another one and put it next to the original one, patted the chair after sitting down, and said to Wang Zi, who was still visiting the rag doll on her bed with great interest: "Big bastard, don't look at it like this, come over quickly." ”

Wang Zi smiled, came to her side, sat down on the chair and said, "You have collected a lot of rag dolls, but unfortunately I don't know any of them." ”

Lin Shi glanced at him triumphantly and said, "Lonely and unheard." Saying that, he picked up a math tutorial book called "Five-Year College Entrance Examination Three-year Simulation" and said: "My math scores are not ideal, usually the last step of the penultimate answer and the last question of the most difficult question stumped me, you have to help me make up for this, you are really perverted, you can score 150 points in mathematics." ”

Wang Zi rarely boasted, but said very seriously: "Actually, I think doing math problems is like reasoning about a case. Especially the last question, the test must be what we usually learn, but it goes around and around, and the amount of information is a little little, so you can't think of that knowledge point. ”

Seeing Lin Shi listening carefully, Wang Zi continued: "When you do this kind of topic, you can first resolve the conditions given in the topic until it can't be resolved, and then start with the problem, use reverse deduction or something, it is very likely to find ideas in the process of resolving the conditions and problems." Of course, the main thing is to do more, do more, as soon as you see this kind of topic, you will know the way of thinking of the questioner, it is very simple, the so-called change is the truth. ”

"Have you done a lot of these questions?" Lin Shi looked surprised, "I usually only see you flipping through a book over there, and I haven't seen you move your pen once, and I haven't seen you take notes seriously in class." ”

Wang Zi smiled faintly: "My learning style is like that, it is only suitable for me, others can't learn it, you see that I usually seem to be bored flipping through books over there, in fact, I was studying very seriously at that time." In this case, you can take out the questions you can't solve and show me, let's start with the questions first. ”

At that moment, Lin Shi opened the book "Five-Year College Entrance Examination Three-Year Simulation" and found a problem, which took her a total of almost two hours last night and calculated five drafts, but she still failed in the end. Because I was insomnia by Wang Zi last night, and I didn't want Lang to waste time, I found some topics to do while finishing my homework.

Wang Zi glanced at the problem casually, picked up the pen on the table, and began to write and talk on a piece of paper as if peeling off the cocoon, in less than ten minutes, he had already explained in detail the math problem that gave Lin Shi a headache all night, and it was on the premise that Lin Shi clearly understood.

"You're really perverted, I guess our math teacher is not as good as you." Lin Shi looked at the paper full of writing, and looked at him with a stunned expression, she couldn't imagine that he could be so organized and clear in addition to being fast, so that she immediately grasped the key to it, and for a while she felt that Wang Zi was beyond the scope of students, and she even felt that this perverted topic was from him.

"It's not hard to feel it now." Wang Zi smiled faintly.

"Well, when you say that, it does feel quite simple." Lin Shi thought about the solution again, and nodded thoughtfully.

Then Lin Shi turned out another question, this is a fill-in-the-blank question, although there is a reference answer, but there is only a result but no process, no matter how she calculates, she can't count the answer.

Wang Zi glanced at it and said: "This question is indeed a bit difficult, and there are a lot of knowledge points used. In this case, you tell me your idea of solving the problem first, and I will see what went wrong. ”

At that moment, Lin Shi wrote while talking, and wrote his thoughts on paper. After she finished speaking, she smiled helplessly: "I think there should be nothing wrong with my thinking, but the result is different from the answer."

Wang Zi smiled and said: "There is nothing wrong with the first half of your problem-solving ideas, but it is a little wrong here." Wang Zi pointed to a certain step written by Lin Shi and said, "Here, it should be like this......" said and wrote down his thoughts, and sure enough, the final result was exactly the same as the answer.

Lin Shi smacked her tongue, glanced at Wang Zi in a daze, and smiled bitterly: "Why didn't I think of this, I'm so stupid." ”

"You're not stupid, if you're stupid, aren't the students behind you mentally retarded? It's just that you've reached a bottleneck now. Wang Zi grinned and comforted her, "In the remaining two months, I will review with you, and try to get past this bottleneck, and there will still be a lot of scores in the college entrance examination." ”