"We're going to be talking about basic math today. Have you learned the multiplication table?"

Early in the morning, after changing the medicine, Zhao Jun began to teach.

Now everyone's schedule has changed.

In the past, Zhao Jun would get up around four o'clock in the morning, Yan Shu would come to bring him some food, and then Zhao Zhen and others would come over to watch for a while before going to court.

After attending court, I would come back and listen to Zhao Jun and Yan Shu chatting, and get a glimpse of the true history from their conversation.

Moreover, Zhao Jun and Yan Shu did not dare to communicate too deeply at that time, so the information they obtained was scattered. They had to rely on Yan Shu to classify and summarize it every day to have a clue, so the information they obtained was not much.

Now that the staff of Nini Village have been built up, Zhao Jun has ten students. After the first class on universe, he started formal teaching today with a math class.

In this way, Zhao Zhen and others could go to the court first, deal with state affairs, and then wait for Zhao Jun to finish his lecture, and Yan Shu would take him outside to bask in the sun. The officials of the Song Dynasty could pretend to be old, weak, and sick people who also came out to bask in the sun, and chat with him in the village.

However, everyone is now accustomed to gathering in the back garden first, checking on Zhao Jun's situation before going to the morning court together. So when Zhao Jun started teaching, there were already dense crowds of people standing outside the door.

Everyone is watching.

Zhao Jun fumbled with the small wooden board, holding the charcoal pencil given by Yan Shu, and asked everyone if they had learned the multiplication table.

Elementary school mathematics is nothing more than addition, subtraction, multiplication and division. Negative numbers are not introduced until around the sixth grade. He is worried that the children here may learn at different paces, so he asks this question. In fact, he is not teaching, but testing their understanding.

Then I heard a crowd of children below speaking in long, clear voices: "No~~~"

"All right."

Zhao Jun didn't expect the children's foundation to be so poor that they hadn't even started learning multiplication. He wondered what the previous volunteer teachers did. Did they only teach addition and subtraction?

"Then let's learn addition and subtraction today."

He fumbled with the wood and wrote one plus one with charcoal, then pointed at it and said, "Who knows what one plus one equals?"

"two!"

the children shouted.

It seems that addition and subtraction are still somewhat basic.

Zhao Jun thought to himself.

"Does anyone know what three plus seven equals?"

He asked again.

No one was quick to answer. The children counted on their fingers, and after a while someone said, "Ten!"

No rounding algorithm.

Zhao Jun roughly knew the children's level, so he wrote down several number sequences on the blackboard, such as one plus nine, two plus eight, three plus seven, four plus six, and five plus five, and said to everyone, "Today we will learn the algorithm for rounding up..."

In daily life, addition and subtraction are generally only used for numbers below five digits. For numbers above that, a calculator is used. Many people even use a calculator directly for numbers above two digits.

But elementary school mathematics still needs to be taught. The so-called rounding algorithm is naturally to first calculate the single digits that can be rounded up.

Zhao Jun wrote 1+6+9 on the blackboard and told everyone how to calculate this number sequence.

Simply put, first calculate 1+9 equals 10, then add 6 equals 16.

However, even such simple arithmetic was still difficult for the children to learn, and it took them a long time to learn it.

After that, Zhao Jun taught several other types, which made the class so busy that his blood pressure almost rose.

There are two difficulties we are facing now.

First, the children have different abilities and their understanding speeds vary, so he has to take care of the slow children and teach them over and over again.

Secondly, he was blind and had to write by groping. Sometimes he would make mistakes and had to erase them and write again. As a result, it often took him several minutes to master one knowledge point, which exhausted him both physically and mentally.

No wonder people say that math teachers tend to lose hair easily. Fortunately, I am a Chinese teacher.

After class, Zhao Jun lay on the bed to rest, feeling relieved.

This time he was assigned to teach in Daliangshan because the previous group of teachers had left and the next group of teachers had not yet arrived. The organization asked him to set up an outpost first to arrange the students, and then send new teachers in batches.

This is what teaching in remote areas is like. There are no fixed teachers. There are even many teachers who are very excited when they first arrive, but they start complaining after a few days, and then give up halfway and run away secretly.

If it weren't for the fact that he wanted to complete the two-year teaching quota and pass the exam, and if it weren't for the fact that the organization would give him many preferential treatments after he passed the exam in the future, Zhao Jun wouldn't want to suffer this hardship.

Now he is the only teacher in the whole school, and he is blind, so the teaching task is very difficult.

For the time being, I can only teach each subject slowly. I hope the road up the mountain will be opened as soon as possible so that I can go down the mountain to the hospital for treatment as soon as possible, and the new teacher will arrive as soon as possible to share the pressure with me.

Zhao Jun thought to himself.

Just when he finished a class, Zhao Zhen and others turned and walked towards the front palace.

At this time, about ten minutes had passed since the court session.

In fact, they would be late in the past, but today they had planned not to be late. They would just look at Zhao Jun's door and go to court immediately. However, they ended up listening to the whole class and missed the court time.

But no one cared. The sky was still dark, and in the east there was a faint gray light visible outside the distant city wall.

The corridor outside the Qingshou Palace was surrounded by outer guards, and then eunuchs and palace maids holding lanterns cleared the way.

Zhao Zhen and several prime ministers did not ride in sedan chairs, but just walked.

As he walked, he said, "Zhao Jun once said that the strength of a nation in the future depends on the power of science and technology, and mathematics is the foundation of science and technology. After listening to this class today, it seems that it is nothing special. It is very simple arithmetic. Aren't there arithmetic books left over from the Qin and Han dynasties?"

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