"Master, morning!" A few children who had just eaten breakfast greeted Li Tianyang and them, politely and respectfully.

"Early, after breakfast, don't doze off in class today, or I'll see how I clean up a few of you!" Li Tianyang actually didn't like them like that, but the parents of the children didn't think so. Originally, everyone called him the young master, as if such a title could show everyone's gratitude and respect for him, and finally under Li Tianyang's strong request, he became a young master. Over time, except for Li Tianyang and the people in their team, everyone else shouted like this.

"Hey~" A few troublemakers lowered their heads embarrassedly and threw them away.

After breakfast and a rest, the next step is two hours of class. In the past, it was only an hour and a half, but now the amount of time required for everyone to study has gradually increased due to the increasing number of things to learn. For more than ten years, Li Tianyang has been trying his best to recall the knowledge he learned when he was studying, although most of it has only been returned to the teacher, but it still makes him remember a lot of things.

According to the previous categories, Li Tianyang divided the knowledge he recalled into algebra, geometry, politics, physics, chemistry and nature. Limited to the current era, a lot of the knowledge he recalled is not suitable for being taught to everyone right away, and there is still a lot of knowledge that even he only knows but doesn't know why, so how can he teach it to everyone like this.

Therefore, he focused on teaching everyone the two disciplines of algebra and geometry. With his knowledge of today, perhaps a very small number of scholars who specialize in such arithmetic as the Nine Chapters can reach or even exceed what he teaches; But he is very confident that there is no one in the world who can teach everyone how to calculate and solve on a large scale like him. The study of geometric knowledge is very important to the astrological skills they need to master, and it can also improve the craftsmanship and thinking of the carpenters in the camp, which is a knowledge that is very compatible with their team.

It's not that Li Tianyang doesn't want to recall more practical knowledge of geography, it's just that as a former science student, it's really difficult for you to let a person who didn't put his mind on geography at all recall these things decades later. What he remembers most is that China is a big rooster, Shanxi is a coal mining capital, and so on, these familiar things, and then remind him of something, it is more difficult than climbing to the sky. Not to mention that a place like Hainan is too far away and unfamiliar in the inland, and I don't know what it produces and what rich mineral resources it has.

As for physics and chemistry, he can only induce everyone to think more about things, such as why the moon changes regularly, why the lid of a boiling kettle can be opened, and why stones turn to lime after calcination. As for the answer, of course, it can only be relied on by this group of teenagers and children to think slowly and answer in the coming days!

Nature, on the other hand, is a knowledge that Li Tianyang attaches more importance to in addition to algebra and geometry. Li Tianyang reached this era, and thought that it was really like what was written in the novel, like sweet potatoes, corn and other high-yield crops were still on the other side of the ocean. But in fact, sweet potatoes and corn have long been flowering and fruiting in the Ming Dynasty, just as a food, the people of the Ming Dynasty are not very able to accept these foreign crops as rations. If a person who is accustomed to eating rice and white flour wants him to immediately change his taste to accept corn and sweet potatoes, it is really embarrassing to die. Unless forced to do so, there is no food, and more people just take these things as an occasional taste of food, and plant a little bit in the fields.

Not to mention, like sweet potatoes, if eaten regularly, there will be adverse reactions of acid reflux, belly swelling and farting, which makes people have scruples about this. Corn is okay, but today's corn yield, in fact, compared with rice and wheat, is not as high as anywhere, at most it is more than dozens of catties per acre, not like later generations, an acre of land harvests a few thousand catties, and it is a well-deserved high yield. However, the yield of sweet potatoes is okay, and one acre of land can harvest seven or eight hundred catties, but the problem is that there is too much moisture in this thing, if you really want to dry it and store it, it is good to have thirty catties left in one hundred catties.

These things are all obtained by Li Tianyang and the teenagers through experiments again and again, and they are much more credible than those deceptive novels.

Of course, these crops are not without other advantages, in order to know why nine out of ten Ming Wear novels always regard these crops as a savior, Li Tianyang also has a deep understanding of the habits of these crops, and also expects these crops to be as high as in later generations. Although Li Tianyang didn't know how the great scientist Yuan Longping's hybrid rice was invented, he had never heard of it, such as corn and sweet potatoes were also hybrid. Although it may be that he is lonely, but this may also indicate that there is huge room for improvement in crops like this?

Like corn, its advantage is that it is drought tolerant, and the requirements for land are not high, anyway, Li Tianyang finds various terrain around the village, as long as there is enough sunlight and soil, it can grow strongly, and the grain produced is basically not much different. Like sweet potatoes, Li Tianyang was a rural child in his previous life, and he was very familiar with its advantages and disadvantages: its stems and leaves grow rapidly and can be used as daily feed for livestock; Although it has a lot of moisture, as long as it is not a cold winter, there is basically no problem of decay, buried in the ground or dug out and stored in a cool place for more than half a year, there is no problem at all, which is not a problem at all in Qiongzhou, which has no winter at all; And most importantly, his ripening time is short, if the land is fertile and the climate is suitable, it can basically mature in about two months, which is suitable for planting a season at a critical juncture to ensure that the famine is surpassed.

Before the earthquake, if Li Tianyang had collected sweet potato seeds, there would have been no tragedy of screening displaced people and driving people out. Relying on the remaining grain and land in the village, Li Tianyang dared to guarantee that he would never let a person go hungry.

And now, in Li Tian's feedlot, the dozens of fat pigs are fed by the sweet potatoes they planted. Even with it, many families in the village who have surplus fields have also begun to grow sweet potatoes and raise the family's livestock.

And these are all Li Tianyang and a group of teenagers and girls who reclaimed hundreds of acres of wasteland outside the village and slowly experimented and summed up. There is no way, as a biologist who is not even half a hanger, Li Tianyang can only take everyone to learn and apply, explore in nature, and learn the mysteries of biology.