Of course, as we all know, after all, this is a world without financial markets, and it is impossible to toss a big family through various means in a short period of time. Therefore, Gao Li's main purpose in telling Nonoka about this matter is just to give Nonoka a wake-up call.

At present, the focus of Gao Li's entire work is still on the issue of education in Lizhuang, and from now it seems that returning to the former world has become a luxury.

Since he wants to live a good life in this world for a long time and forever, it is absolutely not enough to have a little knowledge from another world that he has now.

Centennial plan, education-oriented, any scientific research starts from basic disciplines.

As the saying goes, if you learn mathematics, physics and chemistry well, you are not afraid to go all over the world. In a world where natural science is scarce, Gao Li intends to rearm the minds of these children with numbers, and may not see any benefits in the short term, but who can guarantee that one or two top scientists will not be born in these children.

Now Li Zhuang has Xiu'er and Chu Miaoyi. These two girls are smart, but they have one of the biggest shortcomings, that is, they lack quantitative thinking, all the experiments use exhaustive methods, a little more and a little less, and there is no specific concept.

It's not okay.

Therefore, Professor Gao Liyao's discipline must be included in Xiu'er and Chu Miaoyi.

Lizhuang Primary School is only open for half a day. Learn Chinese today, learn arithmetic tomorrow. There is also the discipline of arithmetic in this world, but the mastery of mathematical laws is not as advanced as Gao Li, and some very simple truths are often made very complicated.

Now, it's time to infuse this world with the beauty of mathematics!

On the first day, Ling Long taught Chinese class, and Gao Li listened to it on the side.

I have to say that listening to Ling Long's lectures is really a pleasure. A lot of jerky content can often be combined with various short stories to tell the story. Time passed rapidly in her melodious words, and before I knew it, the morning had passed, and the children were fascinated by it, and they were reluctant to leave for a long time.

Gao Li couldn't help but sigh, when he went to school back then, the moment he got out of school, the classroom would inevitably be completely emptied within two minutes, just like now the children are wrapped around Ling Long, their eyes are full of thirst for knowledge. This made Gao Li look forward to tomorrow's class.

However.

He thought too much.

It turns out that Ling Long is Ling Long, Gao Li is Gao Li, Ling Long is popular as a teacher, that is her personal charm, Gao Li can't learn it.

Especially math.

The first is for these children to learn to recognize Arabic numerals.

The lingua franca of this world is Chinese, but there is a unique counting system for numbers, which is similar to Arabic numerals, and if it is replaced with this world's system, it will cause problems with future formulas. Therefore, Arabic numerals must be learned first.

This is no problem for those children who have never gone to school or even can't write, but Xiu'er and Chu Miaoyi are full of unhappiness, after all, in their opinion, learning new technical methods is meaningless.

Gao Li's solution to this is very simple, he just threw out a multiplication and division method with more than 5 digits, and the two girls were immediately confused.

"I have an abacus!" Xiu'er said unadmittedly, she took out the abacus and played it in a series of ways, and then quickly came to a conclusion.

There's no denying that the abacus is a really good thing, and it's as fast as a calculator when it comes to performing complex quadruple operations.

But the problem is that the abacus is just a calculation tool, and this thing can only play an auxiliary calculation effect.

"Let's take a chestnut. Gao Li said with a smile.

Gao Li drew a cross coordinate on the ground, then drew an arc from the origin, and then cut an area in the middle.

"A child asked me, this is his family's land, this line is three miles, this line is four miles, this arc is part of a standard circle, the radius is ten miles, now you tell me, how many acres of his family's land is?" Gao Li asked with a smile.

This time, not only Xiu'er, but the entire academy was dumbfounded. How do you calculate this? It's neither horizontal nor vertical, how can it be calculated?

"Lo and behold, we can cut the place into countless little strips and bring it in with a simple formula, and we can get the area. And this process of solving is called calculus. "Gao Li Dao.

"Feed the chicken manure?" Xiu'er said silently.

"Calculus!" Gao Li rewrote three large characters on the blackboard with a plaster pen.

"So what is this chicken manure for? Is it only used to count the land?" said one of the children.

"There are many uses for this thing, but you don't need to know that much yet, you just need to remember now that what I have taught you is a whole new way of calculating. "Gao Li Dao.

"The owner ......," said a spider kid weakly.

"What?"

"We hadn't learned it before, so it's not ......new," the spider kid continued to say weakly.

"That makes sense, anyway, the homework you go back to today is to master the reading, writing and application of these ten numbers, and replace them with your usual reading and writing, understand?"

"Owner, I think this is interesting, when will we learn calculus? A chubby bull demon kid said.

I knew it! I knew that one or two of these kids would like it!

"It's still too early for you to learn calculus! When you're proficient in the crunching of numbers, you'll be greeted with a bunch of formulas, and you'll have Gauss, Fourier, Fermat, and other good friends waiting for you in the future! Gao Li said with a smile.

"No, I think it's fun! And I feel like I can read it!" said the chubby cow boy.

"What's your name?" Gao Li asked.

"My mother said that I know how to eat, and I have eaten it into a wooden mound, so my mother has always called me Niu Duner. The little calf said.

So, do you like to crouch under the apple tree?

"Very good! Niu Dun, if you are really interested, you can come to me at any time. The other students too, if any student is interested in anything I teach, you can come to me at any time, and I will teach you everything I know!

Compared to literature education, which everyone can understand, the biggest problem with mathematics is abstraction. In fact, it's okay now, mathematics is still concrete, every number can correspond to an object, and once you really enter the category of functions, things will immediately become abstract and boring.

Gao Li is very much looking forward to how long that Niu Dun'er child can last.