Class is in Session

That night, after completing her cultivation, Lin Yan began to ponder what she should teach Shi Zhi and the others.

Everything had to start from the basics. Mathematics was somewhat easier to teach, as they had already grasped the fundamental algorithms. All she needed to do was increase the difficulty slightly and begin systematic learning.

The difficult part was physics and chemistry. Starting from scratch, what exactly should she teach?

"Pangbao, do you have any basic textbooks?"

Pangbao replied, "What kind of basic textbooks do you need?"

Lin Yan's eyes rolled around. Asking that meant they existed and she could even make a selection. She said, "I want introductory textbooks for people with zero foundation in physics and chemistry."

Pangbao answered, "We have basic chemistry and basic physics. They require contribution points to redeem, 5 contribution points per book."

"Really? Do you have basic mathematics?" Lin Yan hurriedly asked. Only five contribution points—she could completely afford it.

Pangbao replied, "Yes, we do."

Joy blossomed in Lin Yan's heart. "Where will the redeemed books be?"

Pangbao explained, "The redeemed books are virtual books stored within the core of the Hall of Science and Technology. You can view them on the display screen whenever you need."

"Will they always be there?"

Pangbao replied, "Always, permanently."

Without hesitation, Lin Yan generously spent 15 contribution points to redeem the basic textbooks for mathematics, physics, and chemistry. Shortly after, she noticed an extra icon appeared in the display area of the black crystal ball—those were the three books she had exchanged for.

With a thought from her, the three books were displayed on the large screen, crystal clear.

"Pangbao, open basic physics."

Pangbao replied, "Alright, please take a look."

Lin Yan browsed through it. True to its name, it was the most fundamental material, presenting simple examples and progressing from shallow to deep.

It covered basic concepts such as matter's weight and volume, followed by fundamental mechanics concepts, and finally touched upon electromagnetism at the end.

Lin Yan was extremely satisfied; this was precisely what she needed most. She felt that many things were already common knowledge to her, yet she hadn't known how to explain them.

Now, starting from the beginning, she still required professional books as a guide to study systematically.

With the textbooks acquired, Lin Yan fell asleep contentedly.

The next day, she accompanied her mother to check on the situation in the fields, helping to cut grass and pile up haystacks.

When evening arrived, Lin Yan said to Huahong, "Mom, I want to use the middle room at home to teach the little ones."

"Teach what?" Huahong was startled. Back when they were still living in the caves, that group of children often sought out her daughter to learn things. Why did they need to study again?

"To learn some new things. It might take quite a long time, and they will be coming to our house often from now on. Mom, do you agree?"

Studying was a long-term process, and with more children coming over, Huahong didn't quite know what to think, but she felt communication was necessary first.

"How long will they study?" Huahong asked. Actually, having children stay with Lin Yan also gave her peace of mind. Although the home was safe, Lin Yan was still too young.

Lin Yan hesitated. "Not entirely sure. It depends on how fast Yeya and the others learn. It might take a few years."

"Will they eat at our house?"

"No, everyone will go back to their own homes for meals."

"Alright then. You must get along well with those children and make sure you aren't bullied."

Lin Yan smiled and nodded. "Mom is so good. They will be grateful to Mom in the future."

Huahong didn't care about future gratitude; she only cared about the present. As long as there were children keeping Lin Yan company, that was enough.

After finishing the meal, Lin Yan went next door to find Yeya, bringing up her plan to organize a study group for the children and asking if he was willing to join.

Yeya was naturally willing. After all, he was Lin Yan's follower. "Who else will be there?"

Lin Yan listed, "For now, the confirmed ones are Lingling, Shi Zhi, Shuisheng, Huamin, Lanyue, Baichen, and plus you."

"Who are Lingling, Shi Zhi, and Huamin?" Yeya wore a blank expression. Since when did these unfamiliar little companions appear?

"Haha, they are Caozhi, Xiaoshishi, and Huahua. They chose new names."

Yeya immediately declared, "I want a new name too. Hmm, let's go with Ye Cong. I am the smartest."

"Good, good, Ye Cong is a good name." Yezi happened to overhear and approved heartily. "Sharing my surname, everyone in our family will have the surname Ye from now on."

Mushi expressed no opinion on the matter. The tribe was naturally matriarchal, and it was completely normal for children to share their mother's surname.

Nowadays, virtually every household had a female head, and the children all took their mother's surname.

Ye Cong smiled as well. "Mom, call me Ye Cong from now on, don't get it wrong."

"Alright, my son is called Ye Cong, and Mom will call you that from now on." Yezi looked smilingly at him and Lin Yan. "With more children around in the future, you must protect Lin Yan and not let her get bullied."

Ye Cong puffed out his small chest and guaranteed, "I will definitely protect Lin Yan well. Whoever bullies her, I'll beat them up."

Looking at his serious expression and small stature, Lin Yan couldn't help but burst into laughter.

"Ye Cong, you are too cute."

Ye Cong furrowed his little brows. "I'm serious. I'm older than you, and I can protect you."

"Mm-hmm, I know you're serious. I won't laugh anymore, alright?"

On September 1st, Lin Yan led a group of children to embark on a brand-new learning journey.

In the main room of Lin Yan's house, a large slate and some homemade charcoal pencils were placed.

The children arrived, each carrying their own stool, slate, and charcoal pencil.

The children Lin Yan had named all showed up. Shuisheng's arrival had involved a few twists and turns, and it was only due to Granny Shui's firm support that Shuihua finally gave her consent.

The families of the other children were extremely supportive, as parents all wanted their children to become as smart as Lin Yan.

The crude classroom filled Lin Yan with immense dissatisfaction, yet it was the best she could possibly manage.

She glanced at the children sitting obediently and solemnly announced, "Starting today, I will teach you three subjects: mathematics, physics, and chemistry. Let's lay down some rules first: once you come, you cannot quit halfway, and you must persist every day."

"In the morning, we will have one class for each subject, and the same in the afternoon. Other adjustments will be made based on learning progress. Whenever you encounter something you don't understand, you can ask questions at any time, and everyone will discuss it together."

The children were eager to try, their eyes wide open, wanting to know what exactly they were going to learn today.

Shi Zhi asked first, "Which subject are we learning first?"

"Mathematics." Lin Yan turned around, wrote the four symbols of addition, subtraction, multiplication, and division on the slate, and listed a few simple equations.

"You have already learned the ten digits from 0 to 9, and you know how to calculate addition and subtraction. Today, we are going to learn the four most commonly used symbols in mathematics..."

There were eight children in total, and they listened with rapt attention. Entering the magical world of mathematics for the first time, they had previously only understood simple addition and subtraction through oral mental math.

When everything was clearly demonstrated using text and symbols, it felt completely different.

Once the four basic symbols were recognized and a foundation in addition and subtraction was established, the focus of Lin Yan's lesson shifted to multiplication and division algorithms, and she wrote out the multiplication table.

Selected from over three thousand children, these eight proved to learn remarkably fast, grasping the concepts with just a single hint.

Lin Yan only had to explain once, and they were able to draw inferences about other cases from one instance.