Ring, ring, ring...
The bell rang for the end of the evening study session. The training class had no special schedule and followed the evening study session, from 6:30 to 9:00, which was exactly two and a half hours.
Duan Hong was patrolling the room. When he walked to Wu Tong's desk, he took a look. Wu Tong had already turned a page and was working on question number seven. The draft paper with densely written deduction formulas and processes was piled up on the corner of the desk, almost as thick as a finger joint.
In other words, from the time he gave Wu Tong these papers to now, about an hour and a half had passed, while the other students in the class were still struggling with the provincial competition questions, she had already finished six more difficult national competition questions. This speed and gap shocked him once again!
He didn't know what the talents in other provinces and cities were like, but this student named Wu Tong gave him the ambition to hope for national competitions and even the national team.
When the bell rang, Duan Hong announced that time was up. When the papers were collected, only a few in the class had finished all four questions. In the past, he might have been furious with disappointment, but today, with Wu Tong around, Duan Hong remained silent, collected the papers, and dismissed them.
Today, this group of people who are not doing well have been affected enough by Wu Tong's attack.
Sun Chao finished his agonizing thought. Although he had solved the last problem, he felt that he might have gone in the wrong direction. He turned back to Wu Tong and asked, "Boss, how did you solve the last problem?"
Wu Tong paused to clean up. The title of "big brother" was a little strange to her! However, Wu Tong was not one to dwell on things. She pulled out the piece of paper she had just picked up and said, "This is my idea. Take a look!"
"Define a set A = ···, where N is a set of positive integers. ···Since a is an infinite set, now arrange the elements of A in ascending order into an infinite sequence. ···Determine the relationship between n, m, and k. ···Thus, the condition is met!"
"Thank you!" The boss's guidance and the deduction process on the draft paper were very clear. If he still didn't understand, Sun Chao felt that he could withdraw from the competition directly.
Waving her hand, signaling Sun Chao to leave without a word, Wu Tong packed her bag and left the teaching office. She wasn't very good at socializing, so her first move after class was to pack her bag and go home. With the problems Teacher Duan had given her today, she could even skip the whole trip back to the classroom!
The others were a little slower and missed the chance to make friends with Wu Tong. The few who were closer couldn't help but angrily pat Sun Chao, who had the upper hand.
"Old Sun, you're being disingenuous by enjoying the master's guidance all to yourself!" It was this bastard who had misled them, and they wanted to be guided by the master, too! If they hadn't thought of another chance in the future, they would have wanted to drag this bastard who had taken the initiative down and beat him up!
Little did she know that Wu Tong had already received special permission from Duan Hong, allowing her to slowly study the national competition questions at hand at her own pace without having to follow the large class.
The next few classes were mainly devoted to discussing today's test. Wu Tong had already passed with full marks, so why waste her time? This student was very good at independent learning and self-discipline. She would gain more by letting her make her own arrangements!
That is to say, Wu Tong does not need to attend the next 246 Olympiad training courses. Wu Tong has officially witnessed that the Olympiad questions are just more difficult. There is no specific thinking in the training of the Olympiad class. In the final analysis, it is still just solving questions!
It was not until the exam that this group of people had the opportunity to meet Wu Tong, which almost made them regret it. After they found out on Thursday that Wu Tong did not have to come to class, they were so angry that they settled the score with Sun Chao. Wu Tong is not aware of the follow-up now!
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"Tongtong, here!" Wu Jingzhong was guarding the school gate. When he saw his daughter coming out, he immediately greeted her with a smile. He took the school bag from Wu Tong's hand and stuffed a hot pancake into her hand: "Are you hungry? Come and eat it! It's freshly made and I asked for extra crisps!"
Ever since Wu Tong started attending night classes in junior high school, Wu Jingzhong would personally pick him up at night whenever he was home, rain or shine. Their road was a main road, so it wasn't too dark, but Wu Jingzhong still worried about his child leaving his studies alone.
"It smells so good, Comrade Wu! Thumbs up! I'm starving!" She'd been working on difficult problems for two and a half hours straight, her brain's CPU spinning like crazy, and the aroma of the pancake instantly whetted her hunger. Wu Tong brought the pancake to her lips and took a big bite. This was the taste.
Teacher Jin gave her little to eat from the stalls, so when Comrade Wu picked her up, he would quietly feed her from time to time. Comrade Wu rode his bike, and Wu Tong sat on the back seat, snuggling on her father's back, holding Comrade Wu's clothes with one hand to hold them in place, and eating the cake with the other. There was no greater happiness than this!
······
"Generally speaking, in a changing process, assuming there are two variables x and y,... the independent variable and the dependent variable... then it is a direct proportional function!"
After finishing the summary of a large chapter on functions, Wu Tong paused and asked, "Brother, do you understand?"
These days, Wu Tong has allocated time for self-study of advanced mathematics and doing exercises at school, and he goes to Jin's house to give lectures to Jin Xin at noon.
I first spent two days explaining to Jinxin the concepts of sets, subsets, unions, intersections, complements, etc. in a clear and logical way. After Jinxin mastered the concepts, I started to explain the concepts of functions in the next two days.
"I understand!" Jin Xin's eyes were filled with sudden enlightenment.
Jin Xin didn't understand before and his knowledge was broken, but after Wu Tong sorted it out and filled in the gaps, it has now become a long chain of complete understanding. He feels that it is clear as day.
His admiration for his sister flowed like the Yellow River. Tongtong could easily handle all sorts of knowledge points, casually jotting down lists or meticulously deriving formulas, truly mastering mathematics. Whenever he stumbled over a topic, Tongtong would break it down and explain it to him, whether through direct instruction or backwards explanation.
At this moment, he felt that the pen in his hand was ready to move, as if it was about to transform into a forty-meter-long sword, slashing at the mountain of books and the sea of questions, and solving all the difficult problems.
Oh... OK, Wu Tong didn't discourage Jin Xin's enthusiasm. He raised his hand and took out a stack of papers that he had prepared in advance and handed them to Jin Xin, "Then do these, little brother!"
The young man's current state is that he feels that he has mastered it all. He has gone through all the papers that she carefully selected, and then gone through the tempering of the senior high school entrance examination and quizzes, squeezed out all the water, and finally truly mastered the high school sets and functions.
The effect of her tutoring for the little brother will be reflected in the monthly exam for senior high school students tomorrow, and the results will be released next week.
"Good luck on tomorrow's exam, brother!" Wu Tong stretched out his hand and clenched his fist, bumping fists with Jin Xin like a buddy, and encouragingly smiled.
"Give me five, of course!" Jin Xin nodded vigorously, otherwise it would be unfair to Tongtong for all his hard work!
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