Didn't come before.

When Mrs. Ma and Song Fusheng quarreled, Song Fuling was not thinking about which clothes to wear, nor was it about male and female defense.

She was only thirteen years old, and her birthday was August.

She is actually just over 12 years old, and she will only be 13 years old by August next year.

In Song Fuling's heart, she is not ancient, she is also a child at twelve or thirteen, looking at the age of the Pleasant Goat and the Big Big Wolf.

I didn't think about that at all.

Some still wonder what Daddy is arguing about, is she using her topic to argue about the helplessness of the ancient feudal class.

What she was thinking in her mind was how to teach tomorrow, without trouble, without wasting time, and with a quick finish.

It's best to finish in about an hour in the morning, so that you can go to find milk at noon and have to eat at noon.

And Song Fuling also guessed that Lu Pan must have been entangled in the problem of proportion before calling her.

She thought about it, here, I heard that the teachers in the outside school all wrote on paper and asked the students to come forward to read, and a teacher in a class could not bring many students, and there was no concept of blackboard.

Some are like the modern model of small classes, a pair of a dozen students.

Then she can't do it, if she finishes writing a large article, she still writes it with a brush that she is not skilled in, and it is too wasteful of time to talk about it.

That's going to have to be taught.

So, before she went to bed last night, she told her father that she wanted to bring the little blackboard that taught the children in the family to read.

When Song Fusheng heard this, his eyes lit up:

This is good, one is explaining at the top, and the other is sitting at the bottom, far away.

If you don't understand something, you don't have to get close to a bunch of people to tell them. It's so close that it's exquisite, and it's not good to look at.

Overnight, he asked his second brother Song Fuxi to make a wooden stand for the blackboard.

The small blackboard was originally glued to the wall of the conference room by fish maw glue for the children to read, but Song Fu cut it off.

Isn't this the reason for bringing a blackboard?

Warm flower hall.

When did it become the dominant topic of Song Poria, Lu Pan doesn't know.

I only know that I have been heard continuously.

"Master Lu, what about the sand table you want to make?"

"Not yet."

"How big is it going to be?"

"I didn't think about it."

Song Fuling couldn't help but sigh when she thought about it.

You didn't get anything, so you got it for me first.

You can't do this, you don't have a charter for doing things.

You're like this, if you can't do it, I'll have to do it again.

"That is, nothing, huh?"

Lu Pan took a sip of tea: "Yes." ”

Song Fuling nodded, indicating understanding:

"Lu Gongzi, let me report to you first, like my sand table table, which is the one you saw in the cake shop, the pit stools, fine sand, soil, ground models that will be used on it, various strips of cloth representing roads and rivers, sawdust and pigments that render the tone of the landscape, and the cards and strings that will be used to illustrate the internal buildings and highlands of the city, including plaster, etc., I have already told them, and your subordinates have sent people to find them."

Junzi hurriedly bowed and nodded beside him, and he sent a small servant who went with him, a housekeeper, and a big girl who was going to accompany Song Fuling.

Shunzi sent these out to buy these back as soon as possible and send them to Zeyuan, it is estimated that they will be back soon, and try not to affect the young master and Miss Song Fuling to use them later.

In fact, Song Fuling also asked Shunzi to prepare some wooden sticks.

But she didn't take it out alone.

Wooden sticks can be used to indicate the flags, team marks, and team numbers that are being moved in battle, and this is up to Lu Pan himself.

Song Fuling thought to herself: No, you can't sit here and wait, teach, come directly, it won't affect you.

She stood up and asked, "Master Lu, start now?" ”

"Huh?" The number of times I was stunned today is more than the number of times Lu Pan added up in the previous year.

What to teach, and the material is not being bought?

He hadn't asked what the other party thought about the sand table.

In particular, the geographical location between those countries.

Whether it's a brain beat, a random size and area, or its own set of arithmetic methods.

Moreover, he has not persuaded Song Fuling: You relax and call you here, I just want to hear your thoughts, you can say it casually, and you are not afraid of making mistakes......

He didn't say anything, and Song Fuling was already standing in front of the blackboard and began to write.

"I will often say three words below, one is called scale, one is called horizontal scale, and one is called vertical scale."

Lu Pan raised his eyebrows: "What is a scale?" ”

Song Fuling, who was dressed in pink, orange and yellow skirt, green shoes, and tied with two buns, turned around and said: "It's a kind of abbreviation, the scale bar is the ratio of the length of a line segment on the map to the actual length of the corresponding line segment on the ground, we want to reduce the actual area according to a certain proportion, and shrink it straight to your sand table table." It can't be so complicated every time, let's give it a name. After speaking, he drew a circle on the word "scale".

and reminded Lu Pan: "I suggest that Lu Gongzi take a pen to record." ”

"Wait a minute, what pen are you using?"

"Chalk, this is not important, go get a pen and write it."

Lu Pan: "...... Good. ”

Orb hung her head.

Junko stands in the corner with an expressionless face.

Shunzi's father, the big housekeeper of Zeyuan, heard such a conversation for the first time, and was stunned for a while, before turning his head and frowning at the stunned maid, and scolded him with his breath to get the pen and paper.

Song Fuling turned around, then flipped her mouth and flare, while breaking down the concepts of horizontal scale and vertical scale, and wrote down the formula.

Without delay, he asked Lu Pan: "Did Mr. Lu understand?" ”

Lu Pan looked at the small figure with his back to him: "I understand." ”

It just so happened that Song Fuling had also finished writing, turned around, and nodded with satisfaction at Lu Pan:

"In my opinion, how big the sand table to make depends on the purpose and conditions.

I was writing a script at the time, because the story was set in several countries, and I wanted to be broad, and my sand table should not be too big, and my scale reached 1:10,000.

Usually, it's usually bigger than one to thousand.

This is casual and depends on the size of your table. ”

Lu Pan wanted to ask, there was a bit of a question here.

Song Fuling pressed it with her hand as if she had guessed, signaled not to worry, and listened to her: "So, in order to give you a clear understanding of the proportions I said, I wrote you an example, look at the blackboard." ”

Even Junko's father involuntarily looked up at the blackboard.

I was blinded by a straight and got out.

Junzi rushed to Baozhu again, and the other maids in the flower hall squeezed their eyes, and everyone quietly went outside.

Because Junko has a sixth sense in her heart.

The sixth sense told him that maybe his young master might really not understand, and his stupid side would be exposed.

It doesn't matter if Miss Song is gone, when the time comes, those of them who have seen the young master's ugliness with their own eyes will not have good fruit to eat.

Then, these people who were waiting outside vaguely heard Song Fuling saying:

"You want to shrink a city 200 miles long and 140 miles wide to a sand table, you see.

Let's say that the ratio is 1 to 25,000, then we can calculate it, you use this number, use the algorithm (an ancient algorithm), remove the ratio of 25,000, you? ”

Lu Pan had to stand up, open the curtain, and ask the maid to get him a calculation tool.

A kind of bamboo, more than 270 in a bunch, put in a cloth bag, there are many on the land, especially for counting and accumulation, these are taken out, in a vertical and horizontal way to arrange the corresponding number.

He also has a wooden slip that resembles a modern multiplication table.

Turning around, "You tell me the number you got first." ”

Song Fuling nodded:

"Then you need to make a sand table about 24 feet (8 meters) long and 17 feet wide. Conversely, you can also push back according to the size of the existing sand table table, you see, for example, if your table is 30 feet long and 25 feet wide, then you want to shrink the city 200 miles long and 140 miles wide on this table.

What Song Fuling didn't know was that when she turned around and wrote the formula again, Lu Pan took advantage of the fact that no one in the flower hall saw it, and wiped the sweat between her sideburns and forehead with her hand.

After wiping it up, Song Fuling's eyes turned back with sparkling eyes, and asked people, "Haven't you taken it yet?" It's okay, don't delay, you look at this first, and then you'll use the size of your table," she said as she spoke, drawing a large circle on the number she had written, to show the emphasis.

Look at the blackboard and make the point: "Use it to multiply ......"

Lu Pan suddenly interrupted: "Let's have a cup of tea." ”

"Huh?"

Song Fuling was served by Baozhu and the other two maids, and washed her hands.

The two maids were about to wash her, but she instinctively avoided it.

After dodging, he glanced at the orb.

Did she make a mistake? In modern times, self-reliance is called virtue, and here, if you don't do well, you will be looked down upon by the little girl, saying that we are a little childish.

Hi, how can there be, the two little maids thought: When we can't hear? Girl, you really have the ability, you are stunned to our young master, and you are really capable of giving us the clouds and mountains and fog that we also hear. We finally know why you were the first to be greeted by the young master in Zeyuan.

After Song Fuling washed her hands, at the signal of Lu Pan, she drank tea, and her little hands finally reached into the four sweet candies that she had been thinking about.

Candied ginkgo, well, sweet and sour.

Candied longan, well, sweet.

Candied green plums, well, this is extremely thirst-quenching.

Candied dried peaches, well, it's been a long time.

Song Poria hasn't eaten a peach for a long time, and there is no one in the space.

She didn't pay attention to Lu Pan, and took another piece, was this deliberately sunburned in the peach season? But you have to remember that next year she will also have to dry some and save it for the winter.

Lu Pan really didn't pay attention, because he was a little frustrated. Arithmetic is not as good as a girl's house.

This is something he never expected.

It is completely different from what he imagined before Song Fatya came.

sighed silently in his heart, and turned around to make up for it.

Lu Pan took a sip of the teacup before asking, "Your father, is it better than your arithmetic?" ”

It is taken for granted that everything that Song Fatya knows should be taught by Song Fusheng.

Song Fuling thought about it, she really couldn't do it in ancient times, her father would.

That ancient algorithm was taught to her by her father last night, and told her to pay attention when she spoke, there are no kilometers here, and there are no meters, don't open a mouth, just a few meters and a few meters.

"Yes."

Lu Pan nodded, Song Fusheng is a real talented person, and he did not resume the imperial examination, and people like Song Fusheng waited hard outside, not only delaying such a capable future, but also a loss to the imperial court.

"Before you came, you knew I was going to ask you this? Just meet and start talking? ”

"Yes."

"Do you know where I'm going to use it?"

"Yes."

"The sand table in the dim sum shop isn't as precise as you just taught, is it? You just counted carefully. ”

"Yes." Song Fuling also deliberately smoothed her train of thought last night for this.

Lu Pan squinted: "Why?" ”

Song Fuling said: "I want to stabilize quickly, if there is a war in the future, I really hope that it will not be like in my hometown, the city will be occupied, homeless, I am afraid of fleeing again." ”

I really can't afford to go.

Lu Pan looked at Song Fuling's side face, and his heart moved.

"Where did you write your book?"

"Write it up to the three hundred and ninety-fifth time."