"Is that okay? But that's not what my mother said when she taught me, and there was no mention of mental arithmetic in the book. ”

Rulan still didn't believe it, Qi Heng couldn't figure it out for a long time on the paper, and Wei Chen's mouth was closed.

Looking at Xiao Lori's cute appearance, Wei Chen patiently explained: "The oblique field technique has clouds, and two oblique and half, multiply by the right from Ruoguang, and half from Ruoguang, with multiplication and merger, and the mu method is one." There are also clouds in the Mita technique, and half of the tongue, in order to multiply the right from, and the mu method is one. ”

Rulan nodded, what Wei Chen said was the content of the nine chapters of arithmetic, and Wang Ruofu had taught her before.

Wei Chen paused and continued: "These two methods, in the final analysis, are actually a matter of the area of the trapezoid, you just need to remember that the upper and lower bottom are multiplied by the height and divided by two, and all the calculations of the area of the trapezoid can be set inside." As for the volume of the embankment you are looking for in this question, you only need to calculate the trapezoidal area of the cross-section and multiply it by the width. “

Rulan listened to it for a long time, and felt that she could hear every word Wei Chen said clearly, but she didn't understand it when added together.

Wei Chen had no choice but to take out the bamboo paper with the title written on it from Rulan's hand, and list the formula on it stroke by stroke: "Divide by two by the upper and lower wide, then multiply by the high, and finally multiply by the garn, that's it, you can use the calculation to see it yourself." ”

When Wei Chen withdrew the bamboo paper from Rulan's hand, his fingertips made a momentary contact with the skin on Rulan's forearm, and Wei Chen was in a hurry to give Rulan a lecture and didn't pay attention.

On the contrary, Rulan, who looked very aggressive, was more sensitive, her little face rubbed the ground and a red cloud suddenly rose, and she quickly retracted her hand into her sleeve, and her mind was in chaos.

Seeing that Rulan was stunned there, with a natural look on her face, Wei Chen was angry and funny, and couldn't help asking, "How many years have you been studying the scriptures?" ”

"Three years."

"Three years, look at you, what have you learned in the past three years?"

Wei Chen put on the little gentleman's shelf and said, "You will preside over a family in the future, corn, hired servants, and monthly examples, which one must not use the scriptures?" If you don't even understand this, how can your future husband trust you with the matter of the middle feed? ”

"I ......, I ......, I ......"

When Rulan heard Wei Chen's words, she was really ashamed and angry, and her ears were red.

I haven't had an explanation just now that you touched me, and now I'm talking about the presiding family!

When will I be a housewife, and what does it have to do with you?

Hum!

Rulan glanced at Wei Chen fiercely with her eyes, and didn't speak, so she returned to the table angrily and began to fiddle with the calculations on the table.

Where did I say the wrong thing?

Wei Chen, who was hanging in place, looked inexplicable, and then shook his head depressedly, it seems that my little gentleman is not prestigious, and he can't control this pampered young lady, so he has to find a chance to establish his authority!

Who will open the knife?

Wei Chen's gaze swept over the people below, and finally stopped on Sheng Changfeng's head.

Sheng Changfeng, who was concentrating on silently writing, suddenly had a feeling of being targeted by someone.

I looked up and looked around, but I didn't find anything, so I pouted and continued to do my homework.

Not long after Rulan stepped down, Mo Lan and Minglan also came up to hand in their homework one after another.

Mo Lan stumbled over the three-hundred-word paragraph of "The Female Ring", and made a few mistakes in the middle, Wei Chen pointed out them one by one.

Mo Lan bowed down to be taught, and after asking Wei Chen for several thoughtful instructions, he withdrew from the school and went back to Lin Qi Pavilion.

"It seems to be respectful, but in fact, I am afraid to avoid it, probably because I was instructed by Lin Yushuang to keep my distance from me, right?"

Wei Chen looked at Mo Lan's departing back and shook his head, he could pull Sheng Changfeng back to the right path, but he couldn't do anything about Mo Lan.

After arriving in Bianjing, Sheng Changfeng had already moved out of Lin Qi Pavilion, and he had a small courtyard, next door to his second brother Sheng Changbai, under the supervision of Sheng Changbai, he did not touch mundane things, and devoted himself to learning, and even his biological mother Lin Yushuang had to ask Sheng Hong's consent in advance if she wanted to see her.

But Mo Lan is a daughter, and it is impossible to be as independent as Changfeng, a boy, and she still has to get along with Lin Yushuang day and night, and her heart will inevitably be affected under the influence of her ears and eyes.

Zhuang Jun has experienced the world and has insight into people's hearts, and after a morning's hard work, he saw Mo Lan's mental temperament, so he asked Mo Lan to recite "The Female Ring" as soon as he came, and after some painstaking work, I don't know how much Mo Lan can experience.

After Wei Chen sighed, he withdrew his gaze, looked at the restless little guy standing in front of him, and said with a smile: "Okay, it's your turn, hand in your homework." ”

"Little sir, please advise." Minglan grinned and handed over a pile of paper dipped in ink.

Zhuang Jun's assignment for Minglan was to write 50 "Yong" characters, referring to the eight methods of Yongzi used by Wang Youjun to study calligraphy, which is also a common method for teaching calligraphy beginners.

The first word of the Lanting preface is the Yongzi, the Yongzi has only five strokes, but it contains the eight bodies such as horizontal and vertical skimming, which can be said to include all the changes in calligraphy, so there is a saying that writing a Yongzi can pass everything.

And the reason why Zhuang Jun let Minglan practice calligraphy was actually because he saw her restless little heart and wanted to hone her patience.

Wei Chen took the pile of paper that Minglan had written and flipped through a few sheets, and several adjectives suddenly popped up in his mind: spring leads to autumn snakes, crooked, disorganized, unsightly, miserable......

Wei Chen's face darkened, and he looked up at Minglan in front of him: "You wrote these words?" ”

Minglan blinked her big eyes and looked at Wei Chen innocently.

Wei Chen laughed angrily: "That's right, besides you, who else can write such a masterpiece?" I think Xiao Tao's ghost drawing talisman is stronger than yours! ”

After being criticized, Minglan still didn't care, and squeezed her eyebrows at Wei Chen and said, "Cousin, we are a family, you can be accommodating, let me pass the test." ”

"I am accommodating you, who is accommodating me? It is precisely because you and I are related that I have to be more strict with you! ”

Wei Chen was very angry by Minglan 's hippie smile, that is, he didn't have a beard, otherwise he would have to give Minglan a blow beard and glare.

Minglan also knew that she was unreasonable, so she smiled: "Cousin, my little mother asked me to practice calligraphy and meditation half a year ago, and I haven't seen an inch of progress for many days. Although Mr. Zhuang taught me well, he couldn't see an improvement immediately, why don't you let me go a few more days, maybe in ten days and half a month, my brain will suddenly open up? ”

"You, you, you, are used to quibbles!"

Wei Chen pointed at Minglan and said angrily: "I see that you are just busy playing around, and you haven't worked on your homework at all!" ”

"Cousin~~"

Minglan showed her coquettish Dafa and pleaded in a low voice with Wei Chen.

Wei Chen was unmoved, still iron-faced and selfless, threw the pile of ghost drawings handed over by Minglan on the table, and said in a deep voice: "Punish you to go back and copy "University", and hand it over to me in morning class tomorrow!" ”

Minglan said that her face was bitter, although "University" is the one with the least number of words in the four books, but it also has nearly 2,000 words, if she really wants to copy it all, she doesn't have to sleep tonight.

Minglan clenched her little fists angrily, and was about to protest against Wei Chen's tyranny, but heard Wei Chen say, "It's okay if you don't admit punishment." After the evening class, I will go to Qinyun Courtyard and talk to my aunt about your performance in the school today. ”

Hearing that Wei Chen was so shameless that she even used the trick of suing her parents, Minglan despised Wei Chen very much in her heart, but her body was still very honest.

"Isn't it just copying books, I'll copy! Guarantee that before class tomorrow morning, it will be handed over to Mr. Xiao in front of you. ”