The county magistrate's daughter only wants to farm

The next day, Gu Yin stood in a classroom vacated by the county government office. A large green stone slab about two meters long and three meters high was placed in front of the classroom.

When he first saw the big stone slab that the county magistrate mentioned, Gu Yin wanted to knock it against him. Such a big stone slab with such a smooth surface, no one knew where he found it from. It was simply amazing. Gu Yin even felt it was a bit of a waste to use it as a blackboard.

However, I can’t find anything else that can be used as a blackboard at the moment, so the stone slab in front of me is perfect.

There are several rows of desks in the classroom, which is now full of people.

In addition to the three county yamen heads who attended the meeting yesterday, other constables and runners in the county yamen were also brought in to learn. According to her father, they should learn together, otherwise it would be a waste of time if he listed the tasks with numbers in the future and they couldn't understand it.

Well~ Actually, this is just Gu Yin’s blind guess.

It was a matter of letting one sheep go, or a group of sheep go. Her elder brother and two younger brothers happened to be on vacation, so Gu Yin simply called the three of them over as well.

Gu Yin stood on the podium, flicked his sleeves, raised his eyebrows, and asked in a long tone:

"Everyone... do you know why you are sitting here today and what you are here for?"

Gu Chenjun: Didn’t you drag me here?

The others looked at each other and remained silent.

Gu Yin didn't expect them to answer, and continued to speak:

"Starting today, I will teach you all about mathematics again."

As he spoke, he began to write on the "blackboard" with the specially selected writable powder stone.

From one to ten, one line was written with Chinese characters and one line with Arabic numerals.

Gu Chenshuo felt helpless when he heard his sister say that she wanted to teach everyone mathematics. Their college also had arrangements for mathematics, but the focus of the imperial examination was not this subject, so not many people would spend much time on it.

I don't know why his father, a county magistrate, would let his sister do whatever she wants.

Gu Yin didn't know what his brother was thinking at the podium, so he just continued:

"Does everyone recognize this row of words above?"

"I know, I know. One, two, three, four, five, six, seven, eight, nine, ten." As soon as Gu Yin finished speaking, Gu Chenjun answered.

Gu Yin laughed and pointed at the line of words below and asked, "Yes, very good. What about the line of words below that?"

This really puzzled Gu Chenjun. He scratched his ear and asked, "Is that a word? Not a symbol?"

"That's right. It's a symbol, but it's also a word. This is called Arabic numerals..."

"Ah Yin, so you are here!" A surprised voice suddenly came from the door, interrupting Gu Yin's next words.

As soon as Song Ruorou rushed into the classroom, she felt something was wrong. She looked around and saw twenty or thirty eyes looking at her, which scared her.

Is she in trouble?

"Ruorou? What do you want to talk to me about?" Gu Yin asked.

"No, no, nothing happened. Sorry to bother you." Song Ruorou waved her hands awkwardly.

"It's okay. If you have nothing to do, then sit down and listen together." Gu Yin invited.

Song Ruorou nodded woodenly and sat down next to Gu Chenshuo.

Gu Chenshuo's body stiffened, his mouth moved, and he wanted to say something but in the end he didn't say it.

Next, Gu Yin taught all the numbers. It didn’t matter whether they knew the answer or not. They could just copy them down and think about them slowly when they got home. We were not children anymore and there was no need to teach us two or three words every day.

Gu Yin spent an hour explaining the writing of 1-10 and the writing rules of tens to hundreds and thousands. He also taught the addition and subtraction of simple numbers, and finally wrote the multiplication table on the blackboard.

Afterwards, Song Ruorou looked at Gu Yin with shining eyes and said with emotion:

"You know too much. Where did you learn these numbers? They are much simpler than writing them down."

"Arabic numerals!" Gu Yin was speechless. She had repeated it so many times. She didn't know if it was the first time she heard this type of name or what, she couldn't remember any of them.

"Yes, yes, Arabic numerals. I remember it now." Song Ruorou pulled Gu Yin's sleeve and said with a smile.

Gu Yin: ...You remember it now, but forget it the next moment, right?

"Let's not talk about this. Do you really have nothing to do with me?"

"Ah, I just forgot. Didn't you say you would make me something delicious?" Song Ruorou said with a bit of grievance, blinking her big eyes like an abandoned puppy, complaining, "It's been such a long time and I haven't seen you call me, you didn't forget it, did you?"

"Well, how could that be? I've been busy lately~" Gu Yin coughed lightly, touched his nose, and said guiltily.

"Let's go back and make milk tea now."

How could Song Ruorou refuse? The two of them took their maid and started tinkering in the kitchen.

"Hey, young ladies, just tell your aunt what you want to eat. Why do you have to do it yourself?" The cook, Aunt Xie, said hurriedly when she saw the two young ladies rolling up their sleeves.

"Aunt Xie, we are planning to make something new. Please come and help." Aunt Xie was a hardworking person. She was not happy just standing aside and watching, so she might as well join in.

Milk and tea were ready, so Gu Yin taught Song Ruorou how to make milk tea. Song Ruorou was a grown-up girl and had never been in the kitchen before. It was her first time making something by herself. She stirred it slowly with a spatula and it felt quite new.

Gu Yin asked her to simmer it slowly while she went to prepare the pearls.

"Pearls? Can pearls be eaten?" Song Ruorou was puzzled.

"This pearl is not that pearl." Gu Yin did not explain much. You would know what it is once you make it.

"Then I want to make pearls too." As he said that, he put the shovel into Aunt Xie's hand.

Gu Yin: ...Forget it. I didn’t expect her to be of any help anyway.

If there is no tapioca flour, use glutinous rice flour instead. Pour brown sugar water into the glutinous rice flour, keep kneading it into a ball, then make it into small balls, and finally cook them with brown sugar water, and the pearls are ready.

Gu Yin also made small taro balls. Red beans, the conditions here are limited, there is no way, we can't make too many varieties at the moment.

Two hours later, Gu Yin and Song Ruorou each held a bamboo tube with a bamboo pipe inserted in it and sat in the pavilion in the yard, smoking non-stop.

Song Ruorou took a deep breath and stretched the bamboo tube in front of Gu Yin's eyes:

"Another one."

Gu Yin choked and advised helplessly:

"You've already had three cans. You can't drink any more."

"But it's really delicious. It's icy cold and refreshing after one sip. The toppings in it are delicious too." Song Ruorou pouted, trying to act coquettishly.

"This trick doesn't work for me. I really can't drink it anymore. No matter how delicious something is, if you eat too much at once, you'll get sick of it, right? Let's do it next time."

Gu Yin was worried that she would drink too much at once and something might go wrong, even though she also wanted to drink.

Put the prepared milk tea in the well to cool down. It is really refreshing to take a sip in this sunny weather.