After the first period of evening self-study, Shan Kaiquan went to the office, took a stack of mathematics papers and returned to the classroom to distribute them.

Guo Kunnan saw his former good brothers chatting and laughing with Dong Qingfeng and Xin Youling while they were handing out test papers. For a moment, his mind was in a trance, and he felt like the world had changed.

Unknowingly, Shan Kaiquan seemed to have stepped into the 'decision-making level' of Class 8, but he was still an ordinary student.

This kind of gap makes Guo Kunnan quite uncomfortable. Previously, he was influenced by the family of his female classmates in elementary school, and now he is witnessing the success of his former brothers.

His frustration worsened.

After Jiang Ning received the mathematics test paper, he immediately handed it to Xue Yuantong and ordered: "Work."

Xue Yuantong was reluctant, but still took the test paper.

"Shan Kaiquan, did Fatty Gao say when the test papers will be handed in?" Even Lu Qiqi also talked to Shan Kaiquan.

"No, he didn't say he would pay it tonight."

Yu Wen: "It's strange."

In the past, Fatty Gao had sinister intentions. Every time he handed out test papers, he would often limit them to handing them in before the end of the evening self-study. In this way, he severely squeezed the students' time and used the evening self-study as his own in disguise.

After handing in the test paper, Fatty Gao would correct it at night and send it to the students the next day. Then he would explain where the students made more mistakes.

Now they don’t accept it anymore!

Shan Kaiquan knew a lot. He said: "I heard from the math class representative of Class 1 that they don't have to hand in their current test papers."

Due to Gao Heshuai's own efforts and his good relationship with Director Yan of the Academic Affairs Office, he is now responsible for the mathematics teacher of Experiment 1 Class.

Jiang Yanan: "Hey, have you noticed that Teacher Gao has no energy every day lately?"

Yu Wen quickly said: "Yes, the dark circles under my eyes are quite heavy."

Everyone has various speculations, but they don’t know the reason.

…

Because the math test paper was distributed, the second period of self-study in the evening was no longer leisurely, but Gao Heshuai did not set a time for handing in the paper, so now he is in a semi-leisure state.

Xue Yuantong was eating fruit and writing test papers at the same time. He wrote the papers very quickly.

Chen Siyu was stunned for a while.

Jiang Ning continued to carve his black walnut wood.

Yu Wen and Jiang Yanan were writing the test papers seriously at first, especially Yu Wen. She wrote very seriously and planned to ask Huang Zhongfei for advice later to build a relationship.

But Huang Zhongfei was called to the student union meeting again.

Yu Wen cursed: "A broken high school student union, does it have so many trivial matters?"

Without Huang Zhongfei, she gradually started chatting again. She really loved chatting.

Jiang Yanan saw photos of Zhou Jinglan from her school in Tieba. Zhou Jinglan is a small Internet celebrity in Tieba. She loves school uniforms, has the temperament of a talented woman of that era a hundred years ago, and has countless fans.

Women, although they like to say, "Sisters have great foundations" and "If you lose weight, you will definitely be a beautiful woman," but when they see a real beauty, they often like to be weird: "Ah, does anyone really think she is good-looking?"

Yu Wen: "I feel very ordinary!"

Jiang Yanan's outlook on life is a bit more upright than hers. She said: "This photo is really pretty."

When Yu Wen saw the various compliments in the post, she frowned and organized her words: "For me, the standard of beauty in my heart is relatively high. If I can't reach this point and yet be called a beauty, I will

It’s very shocking, and it affects my outlook. Although I know there are many similar people in the world, this does not prevent me from lowering my impression of Zhou Jinglan.”

She chattered a lot.

Cui Yu, who was eavesdropping on the other side, almost laughed out loud: "Zhou Jinglan needs your approval, who do you think I am?"

Yu Wen was displeased: "My impression of you is now negative."

Cui Yu: "Guizi, give her a score!"

Meng Gui put down the action movie, cleared his throat, and gave Yu Wen a 1, Wang Yanyan a 3, and Zhou Jinglan a 5.

People on both sides were quarreling across the river, but Xin Youling stopped them.

Bai Yu and Xia Moran: 'It's quite exciting.'

Yu Wen was indignant.

When the class was about to end, Jiang Ning gave a large number of parts to Xue Yuantong.

Under Tongtong's suspicious eyes, he said: "With your talent, only you can complete such a difficult task."

Xue Yuantong was elated. He felt trusted and expected, and he was back!

"Leave it to me!" She accepted solemnly.

Not long after helping Jiang Ning write the test paper, she once again threw herself into the task of piecing together the wood with full fighting spirit.

Chen Siyu looked at a pile of messy parts. There were wooden strips as thin as chopsticks, thin wood slices like coins, wood shaped like small wooden spoons, and even a flexible flat bamboo strip.

She couldn't help but wonder: "This is?"

How do you put it together when you don’t even have a blueprint? Jiang Ning can’t mess with it, right?

Bai Yuxia cast her gaze and studied it carefully for a while, her deep eyes gradually becoming clear.

"I probably know." Bai Yuxia said as she picked up the strange-looking wooden spoon.

Chen Siyu: "What?"

Bai Yuxia: "Didn't you guess it?"

Xue Yuantong: "I guessed it too!"

Bai Yuxia: "The name is three words."

Xue Yuantong nodded like a chicken: "Hmm, three words."

Sandwiched between the two of them, Chen Siyu, who couldn't understand what they were saying, was very weak and helpless. She was unwilling to give up: 'Damn it!'

She hates it so much. If her sister fought side by side with her, why would she end up in this situation?

Bai Yuxia flipped the 'wooden spoon' and said, "Let's see what it is?"

Xue Yuantong: "Okay, let's talk together! Let's see who can guess correctly!"

When Chen Siyu saw them competing, she was afraid that there would be no chaos, so she immediately acted as the referee:

"Three, two...one!"

Bai Yuxia's voice sounded like a clear spring, and she blurted out three words: "Catapult!"

At the same time, Xue Yuantong: "Cake spoon!"

The atmosphere was quiet for a few seconds, and Bai Yuxia continued to write the test paper.

Xue Yuantong's voice was childish: "Yuxia, why don't you speak?"

Bai Yuxia cursed: 'It's a waste of life to communicate with you!'

…

Bai Yuxia's answer is correct. The wooden spoon is the launching arm of the catapult, and the spoon at the end is used to hold stones.

With the specific objects in hand, Xue Yuantong began to assemble them.

The parts carved by Jiang Ning are carefully crafted and made of black walnut wood. The surface of the wood is polished smoothly without any burrs.

Chen Siyu opened her eyes wide and watched Xue Yuantong assemble it. Even after class was over, she was still watching.

Compared with those large assembly toys, ancient catapults did not have many parts, and Xue Yuantong understood the so-called principles of catapults.

After the main body of the catapult was assembled, Xue Yuantong installed the wheels, rotating disk, bow wings, winch, ropes, etc., and made a few adjustments to confirm that the assembly was complete.

At this time, many male classmates had gathered around.

This black walnut catapult is about the same size as an adult man's palm. It is placed on the desk. The pure wooden appearance reveals an ancient charm. At a glance, various gears, levers, ropes, precision and harmony can be seen.

The mechanical system shows the wisdom and skills of ancient craftsmen and is simply a work of art.

Even though Jiang Yanan is a girl, she couldn't help but praise: "It's so cool!"

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Shan Kaiquan was attracted: "He's really handsome, damn!"

Wang Longlong: “It’s wonderful to use wood as its body and ingenuity to use it!”

At this time, objections came from the crowd: "How old are you to be so childish?"

Everyone turned around and saw that it was Cui Yu who was talking just now. He smiled again and said, "Why don't you lend me such a childish thing to play with."

Wu Xiaoqi was also attracted. He took out a piece of chalk the size of a small fingernail and said, "Here, let's try to drop a bomb."

Cui Yu: "Oh, you actually brought chalk?"

Wu Xiaoqi was proud: "The tall fat man hit me and I caught the spoils."

Xue Yuantong shook the winch of the catapult, and saw the launching arm slowly falling, and the bow wings bending, accumulating strong power.

Wu Xiaoqi loaded the chalk tip, and Xue Yuantong pulled the mechanism of the sling hook. The next step, the mechanical structure transmitted, the elastic force and the lever structure exerted force at the same time. The chalk tip instantly flew up and hit the front of the classroom, spanning a distance of nearly ten meters.
To be continued...