The long National Day holiday is fleeting for senior high school students, and many students return to school without even having time to take a look at the news broadcast.

As the head teacher Chen Fang said, there will be a monthly exam on the second day after the end of the National Day, so the teachers and students in the class today are making the final sprint for this exam.

During the lunch break, Wu Bin came to the teacher's office with a stack of papers that were exaggerated, each of which represented the "love" of the two teachers of physics and mathematics for him

Cai Guoping took Wu Bin's physics paper and began to flip through it, and it was very fast, which means that there was no mistake on Wu Bin's paper.

"Huh? Why are these tickets empty? After flipping through about seven or eight volumes, Cai Guoping pointed to a completely blank volume and looked at Wu Bin.

"Russian ......" Wu Bin touched his nose, a little unsure of what to say.

"Russia, Russia, to put it directly, I believe that it is definitely not that you have not had time to do this kind of reason."

"Because I think...... The repetition rate of question types is too high, and I don't think it will improve me much by repeating this kind of question, so I saved my time. Wu Bin was a little cautious when he said it, for fear that Cai Guoping would think that he looked down on physics again.

But this time, Cai Guoping not only didn't get angry after listening to Wu Bin's words, but laughed and said: "Okay, it's very good that you can realize this, which means that you have jumped out of the level of learning for the sake of learning and learning for the exam." ”

Hearing Cai Guoping's affirmative words, Wu Bin breathed a sigh of relief, in fact, the reason is very simple, after fully mastering a kind of knowledge, low-level repetition is not a good thing, for example, the problem of chickens and rabbits in the same cage, relying on simple addition and subtraction will be calculated to be dizzy, but once you master the advanced equations, you can easily solve it.

In other words, if you look down from a higher level, many problems will naturally disappear.

But at this time, Cai Guoping suddenly took out a pen from the pen holder and added: "But if you make a mistake in the type of questions on these papers in the future, you are ready to give me questions to make this pen run out of oil." ”

"Okay, no problem." Wu Bin nodded confidently.

In physics, Wu Bin not only mastered the knowledge given to him by high school books, but also learned a lot of difficult courses from the system, and has completely mastered abstract algebra anti-function analysis algebraic geometry.

In addition, he studied a lot of to achieve an absolutely solid foundation, easily calculated three pages of Euler's equations by hand, and integrated the hard solution path for two hours, and all the exercises given by Cai Guoping could be memorized backwards.

This accumulation of knowledge has given him enough self-confidence.

"Then I don't have anything to do with you, go ahead." Cai Guoping waved his hand at Wu Bin.

When it comes to mathematics, Wu Bin is not so confident, although he has completed all the papers given to him by Liu Yushan, there are a few questions that are not sure whether they are correct or not, which forms a strong contrast with physics and finding it boring.

This made him feel that the physics learning talent bonus obtained by the previous lottery was strong, which played a huge role in consolidating the foundation and overcoming difficult problems.

Liu Yushan patiently scratched his head after correcting all of Wu Bin's papers, stretched out his right hand and beckoned Wu Bin, motioning for him to come over a little.

Although Wu Bin was a little strange, he still leaned forward slightly and came to Liu Yushan's side.

"You think physics is easier than math?"

Liu Yushan said this very quietly.

"Hmm." Wu Bin replied very straightforwardly.

"It doesn't make sense......"

Liu Yushan sighed with emotion and flipped out a scroll, pointed to a parabolic body and said: "You can use Vedic theorem to drill the tip of the horns of the bull in this problem, and it can be solved by the unified second equation of the conic curve." ”

Wu Bin looked at the question, thought about it for a while, and nodded: "No wonder, why did I say that this question is so computational." ”

"I don't blame you, I haven't explained this kind of question to you in detail, I didn't expect you to do it."

In addition to this parabolic problem, Wu Bin also made a lot of mistakes, the first of which was trigonometric functions.

The image nature of trigonometric functions, the coordinate operation of vectors, the induction formula, etc., all make him feel like he has hit the ceiling, and to say that the simple point is to fail to grasp the essence, so every time he encounters a trigonometric function problem, he does it head-on.

After learning about the bottleneck, Wu Bin understood why the assembly appeared in the first unit of the first year of high school, because it runs through the entire high school and occupies a very important position. Parity, monotonicity and cyclical depletion of his brain cells in large quantities over a long period of time.

As a result, he now has to do physics problems for a while after hours of math problems.

Otherwise, even a person like him who knows the difficulties can't hold on, and his teeth grit the steel plate!

After a lunch break in the office, in addition to talking about all the math papers, Liu Yushan taught him the powerful functions of the Casio calculator by the way, although it was not so powerful that Wu Bin's problem-solving ability could be upgraded to a higher level, but it could indeed save a lot of time for complex calculations, and it could be regarded as a powerful tool for doing problems.

Back in the classroom, Wu Bin continued to brush up on math problems, his heart could be said to be full of dissatisfaction, his goal was to step on the math class representative next door!

In the evening self-study, Wu Bin found that Liu Yushan had changed classes with Zhou Wenxiang, the Chinese teacher who was supposed to be on duty, and the reason was naturally to tutor him in mathematics.

When he heard Cai Guoping say in the office that Wu Bin had basically eaten high school physics, the fire in his heart that had not been lit for a long time, the fire of competitiveness, suddenly burned!

Liu Yushan's enthusiasm made Wu Bin a little flattered, but of course he was happy to accept it.

When Liu Yushan began to give himself a lecture, Wu Bin immediately found that this seemed to be different from the usual topic thinking, but he didn't care too much, until the end of the evening self-study, making the last paper made him suddenly have a feeling of enlightenment, and he actually had a long-lost sense of pleasure when he started the question.

"Teacher Liu, you are amazing! I feel like all my problem-solving skills have been upgraded now. ”

In the end, Wu Bin, who made a full score roll, almost wanted to hug Liu Yushan and kiss him.

To put it simply, the method that Liu Yushan told him was to dismember a question to pieces when doing example problems or analyzing wrong questions, and he wanted to find out all the conclusions of a condition, and then summarize a place every time he encountered it, and naturally know which conclusion each condition needs in this problem when he comes to it twice.

Seeing Wu Bin's progress, Liu Yushan was naturally very happy, he also pondered this method for an afternoon, and felt that it might be suitable for Wu Bin, so he couldn't wait to exchange the evening self-study.

"Actually, this is the Cornell note-taking method, and I've improved it a little." Liu Yushan said with a smile.

"It's amazing, so shouldn't this be called Liu's note-taking method?"

"It's good to work for you." Liu Yushan said and glanced at his watch, "Okay, go back to sleep, it's not early, there will be an exam tomorrow." ”

"Okay, thank you, Mr. Liu."

After Wu Bin finished speaking, he bowed deeply to Liu Yushan, this teacher really put a lot of thought into him.