Li Xuan originally thought that it would be easy to teach a group of natives to learn addition, subtraction, multiplication, division, and the most basic astronomical and geographical knowledge.

But what he didn't expect was that when he tried to teach these natives modern knowledge himself, the result would make him collapse.

The first batch of students who studied with Li Xuan and became the protégés of the Son of Heaven were all selected from the half-grown children in the original Guards, a total of fifteen people, ranging in age from thirteen to fifteen years old.

After more than half a year of literacy class study, they can already recognize some of the most basic common words, to put it mildly, their reading and writing level is enough to be compared with the kindergarten children of later generations, and it is also a large class!

I don't know how much stronger than a group of foreigners who have worked hard to learn Chinese for several years and can't even pronounce it accurately!

But Li Xuan found that their language level was comparable to that of kindergarten children, and at the same time, he also found that they had the same problems as kindergarten children!

When the first day of class started, when Li Xuan taught them addition, before Li Xuan could say one plus one to one plus two, a young officer who looked very honest raised his hand to ask a question.

Seeing that this honest young man raised his hand to ask questions in an orderly manner, Li Xuan nodded with a smile: "This classmate, do you have any questions?" ”

"Your Majesty, why does one plus one equal two?" As he spoke, the honest young man touched his head, revealing a very embarrassed expression, obviously feeling quite ashamed that he couldn't understand such a simple question as one plus one equals two!

As soon as he heard this question, Li Xuan's mouth opened slightly, and he seemed to want to say something, but he didn't say anything after opening his mouth for a long time.

Holy, are you sure you're an indigenous teenager who hasn't even learned the simplest addition of tens? To be able to ask such a profound question, don't you cross over to embarrass Lao Tzu!

"Why does one plus one equal two, this classmate asked well!" Li Xuan said while recalling his mathematical knowledge that he was about to return to the teacher, and it seemed that there was a formula that could prove why one plus one equals two.

Ma Dan, how can the names of these gringos be so complicated, he can't even remember what the formula is, it can't be a preserved egg, right? Although the preserved egg porridge is very delicious, it can't solve why one plus one equals two!

How to explain that one plus one equals two, Rong Zhen think about it!

Li Xuan recalled for most of the day, those formulas were like loaches and played hide and seek, he thought about it, and occasionally remembered a little, but more of it was like seeing flowers in the fog, and he couldn't remember it.

After recalling it for most of the day, Li Xuan's face slowly changed.

At this moment, he felt that his pride as a time-traveler was broken by a small indigenous boy!

The paralysis can't be endured!

Immediately, his face turned straight: "This classmate, you must have a correct attitude towards learning, don't be too ambitious, one plus one, this kind of advanced problem involving the operation of heaven and earth, and the truth of all things is not something you should be able to contact now!" ”

As soon as these words came out, the honest young man who asked the question below showed a panicked expression, and there were some doubts in the panic, why is one plus one equal to two a profound question?

He doesn't understand!

After Li Xuan said this, he felt that this was too serious, and he was afraid that it would discourage these teenagers from learning, which would not be conducive to his subsequent plan to train these teenagers into iron-blooded soldiers and scientists in the sixteenth century.

Immediately, his face softened slightly, and he said in a kind old man's tone: "This problem, when you grow up, you will naturally know!" ”

After listening to Li Xuan's words, the honest young man showed an expression that seemed to have gained, it turned out that he was too young to understand!

But how old do you have to be to grow up, I am fourteen years old this year, and my family has already told him a family matter, the woman is another family in the mountains that is very famous, the daughter of a family of bandits with swords and guns, and she will be married when she is fifteen years old next year, and will she be considered to have grown up by then?

In the next few days, Li Xuan found that the phrase 'you will know when you grow up' was a panacea, and whenever those indigenous students asked some nonsense questions, he could use this sentence to deal with it.

They often ask common sense that seems simple, but is actually quite troublesome to explain, such as why the moon and sun don't fall in the sky.

Is the ground round under our feet? And it's still spinning? So why don't we fall? Why are dark clouds gray and why do rainbows have seven colors......

Li Xuan would explain them in detail at first, but he would soon find that the more he explained, the more problematic it became.

He explained to them that the sun doesn't go down because of gravity, and then they would ask what gravity is and who was Newton? Why is the name so weird!

And it often leads to a lot of math problems, and finally makes Li Xuan a little angry, Nima, you are still a group of kindergarten children, and you haven't even learned addition and subtraction within a hundred, and now you want to learn the content of junior high school students?

Ma Dan, let's talk about it when you grow up!

I have to say that teaching these young officers in the army is the most tricky, troublesome, and crazy thing Li Xuan has encountered since he crossed, before he took the army to fight with the Ming army for more than a month, and he didn't feel anything after suffering so much along the way, and he didn't think about giving up.

But in the face of these young officers and students, Li Xuan wanted to give up his teaching plan more than once!

But for the rise of the Tang Dynasty, for the emperor's throne under his Li Xuan's ass, and for the sake of being able to have someone do it for him in the future and teach lessons to more other people, he endured it with great determination!

As the so-called heaven descends on the people, they must first suffer their minds, strain their muscles and bones, starve their bodies and skins, empty their bodies, and act chaotically, so they are motivated to endure and gain what they cannot.

God asked him to be the emperor, naturally he had to make him suffer a little first, and he couldn't lie down and sleep by himself, and all the benefits came.

So Li Xuan endured it, he endured it for half a month, but after half a month, he finally couldn't help it, after another class that exhausted him, Li Xuan announced a holiday, and it was a release for three days!

He had to take a good break, or he would continue to be devastated like this, and his young heart would collapse sooner or later!

But he was so miserable as a teacher, and those students didn't expect this holiday to be much better, but he left these students with a lot of homework, enough for them to go from morning to night, from night to dawn in the next three days!

Just a child, you dare to be crazy with the old man, so much homework, you can't kill you!