Reborn I just want to concentrate on studying

Chapter 305

It started to rain this day.

The rain in November is really unusually cool.

The wipers swiped back and forth slowly, leaving two fan-shaped marks on the front windshield, and the raindrops added some water stains on them in a disorderly manner, and were wiped away the next moment.

When Jiang Lili was driving, her eyes would be attracted by the wiper occasionally, and the raindrops outside the range of the wiper would always stay in a certain corner, and she would be a little dissatisfied until the few drops of water collided and converged in her peripheral vision, forming a raindrop. A large stream flowed down an irregular line and hit the wiper, which made her feel more comfortable.

But generally speaking, the line of sight is still on the road ahead.

She thinks that she is already a mature old female driver, she can do two things at once, and the steering wheel is so stable.

Somewhat complacent, the corners of his mouth were raised slightly, and he hummed a song softly, thinking about it again, thinking of those old drivers holding the steering wheel with one hand and the gear lever with the other hand, I thought it was very handsome, taking advantage of the wide view ahead, there was no car on the road , hold the steering wheel with your left hand, and explore the gear lever with your right hand.

Yi Yang next to her noticed her movement, and asked strangely: "Isn't it an automatic car?"

Jiang Lili withdrew his hand in embarrassment, and said without blushing, "Well...you know, you're used to manual transmission."

And the road to the examination room is wider than expected. There are not many cars on the road, and the view is wide, so the mood will be inexplicably open. Although it is raining outside, it does not affect the interest of the people in the car.

"Ah?" Wang Sangning was taken aback, then smiled and said, "Didn't you teach me all the time?"

Wang Sangning smiled: "There are some questions, I've been thinking about them until my head is blown, but every time Yi Yang glances at them, he can come up with weird solutions to those questions..."

Yi Yang looked back at Wang Sangning, smiled and said, "Sang Ning, that's all right, let me teach you mathematics, physics and chemistry."

After the three got out of the car, the rain hadn't stopped.

"As for how knowledge is used, I don't quite understand what you mean by this question. Anyway, I have been doing questions all the time. I know and remember many formulas, but when I encounter more complicated questions, I still can't use them. I have Sometimes I wonder if I’m too stupid.”

Wang Sangning stared at the rain outside the window for a while, then suddenly glanced at the green plants on the side of the road, and asked quietly: "Yi Yang, how should I study science?"

Wang Sangning took a look at Jiang Lili, her eyes flickering, and said to Yi Yang: "Cousin can do whatever she says, you have to work hard! I'm also looking forward to what gift my sister will buy for you."

Wang Sangning nodded, she felt that this method was very reliable, and she felt a little cheered up.

Jiang Lili turned on the turn signal, looked at Yi Yang's rearview mirror, slowed down and drove towards another intersection.

Good guy, he was ignored... Jiang Lili stepped on the gas pedal.

"One of the frustrating things about science subjects is that it's hard for you to know how much you've learned, especially for people like you...well, with great potential, you don't even know what you're short of. Where, so there is no way to talk about improvement, right?"

"Come out and take a breath, you should feel better, right?"

Jiang Lili glanced at Yi Yang quickly, then turned to stare at the road ahead, and murmured: "Can you even get this kind of point?"

"Derivation?"

Yi Yang: "..."

Wang Sangning's breathing became a little short, her eyes lit up, and she nodded seriously: "Yeah."

"In the first step, we try to go through all the definitions in this way."

"You can understand projection in this way. Take a beam of light and shine it vertically on a wall. When you draw a picture on the wall, you put a pen in front of the light. The shadow cast by the pen is an image model of the projection. , If you understand it this way, you will immediately construct a projected structure diagram in your mind, right?"

Jiang Lili also glanced at Yi Yang with some doubts.

At this time, the car turned a corner and turned into a branch road, and the number of cars on the left, right, front and back suddenly increased, Jiang Lili also became serious, and stopped talking to Yi Yang and the others.

Wang Sangning blinked: "Huh?"

Jiang Lili was a little funny when she heard the big cake that Yi Yang drew for her sister, but she had to say that even she could understand the learning method Yi Yang described, and found it very practical, so she smiled slightly: "Okay, Seeing that you two are so full of energy, Ben Gong is very pleased, then I will help you, Sang Ning, just do what Yi Yang said, and you are responsible for explaining me clearly."

He has been making up lessons for Wang Sangning, but what he can do is mostly limited to answering questions.

Wang Yangming was able to sum up the law that can guide all the principles of action, or to say that the methodology "integrates knowledge and action"; teachers and comrades can also sum up the "big principles" that guide the revolution.

Wang Sangning was taken aback.

"And for this process, we have to combine it with the textbook."

"Well... your question is a bit abstract. How to absorb knowledge is to listen to the teacher in class. But because my foundation is relatively poor, you also know it, so when the teacher is in class, I often encounter some things that I don't understand. place, then I will ask you, and sometimes I will ask Wen Xiao, anyway, I just figured it out..."

Wang Sangning's chest was warm, and she nodded: "Thank you."

Yi Yang is a little serious, which is exactly what he has been doing.

Jiang Lili snorted: "Anyway, it doesn't work."

Wang Sangning leaned over from the back row and asked innocently: "Sister, have you ever driven a manual transmission after leaving the driving school?"

Jiang Lili and Wang Sangning found seats in the examination hall.

Each person's ability to understand, study habits, and knowledge reserves are determined. It is still necessary to explore a learning method that suits you on the basis of correct thinking.

"Mathematics, physics and chemistry will definitely improve."

"Ok?"

Yi Yang said to Jiang Lili: "If I get my driver's license today, let me drive."

The car gradually drove into an industrial park. The roads here are spacious. From time to time, one or two vehicles for the driving test can be seen driving slowly. Jiang Lili passed by and glanced sideways. He could still see The driving test candidate in the car pinched the steering wheel nervously.

Yi Yang said: "Still relying on textbooks, when we have basically mastered all concept definitions, the score may not immediately increase, but the foundation has been laid. After this step, all we need to do is derivation. "

"You should have memorized a lot of second-level formulas, right? But many formulas, you don't know how they come from. This won't work. After finishing the first step, the next step is to independently derive the formulas based on the first step. Those secondary formulas."

They really work hard and study hard every day, but their scores are always stuck in the early 500s and they can't go up. It really doesn't matter whether they work hard or not.

Yi Yang went to talk to Wang Sangning.

Yi Yang shook his head: "No, what I'm talking about here is to start from the basics and use a quantifiable way to take you to learn."

Yi Yang thought for a while and asked, "Can I choose the gift myself?"

Wang Sangning blinked.

After Yi Yang left, Wang Sangning approached Jiang Lili and asked curiously, "Sister, what gift did you buy for Yi Yang?"

Wang Sangning nodded, and asked again: "What about after the first step is completed?"

"What is difficult to understand in the concept?"

Yi Yang is a little serious, but also a little serious: "Let me briefly explain the three steps. If you think it makes sense, I will take you to do it together."

"But how do we tell if you understand a definition?"

"But the next question comes again, what is science abstract?"

Yi Yang nodded: "Yes, it's just an example, turning abstract things into concrete things, as long as you can express and describe abstract concepts through specific examples, it means you have really mastered it."

She couldn't help but silently glanced at Wang Sangning. This younger sister who seemed a bit naturally dumb actually knew everything in her heart.

"I've had similar emotions..."

Jiang Lili couldn't help laughing: "Does your school always refer to scumbags as people with great potential?"

"If you can accept it, in the next period of time, you will use examples to give... Well, let me tell you about Sister Jiang, so that she can understand those concepts and definitions, it means that you fully understand the concept .”

Yi Yang seriously thought about his own experience in studying several subjects of science, and tried to analyze and summarize some of the inspirations.

Wang Sangning felt that this method was very operable, so she became excited, and nodded repeatedly, "Mmmmm..."

"The number of definitions is certain, so we can quantify how many concepts we understand. If there are 200 concepts and you understand 140, that is 70%. It is clear at a glance, right?"

"Because of abstraction!" Without waiting for Wang Sangning to answer, Yi Yang spoke directly.

"The method you told me last time, using reasoning to build a knowledge system, is still a bit difficult..." Wang Sangning sighed. In fact, it's hard to describe exactly where the difficulty lies.

Jiang Lili said: "It's agreed, if you get your driver's license, I will give you a gift."

Yi Yang continued: "It's conceptual abstraction!"

"Why?"

Yi Yang continued: "I came up with a method, divided into three steps, you follow me to do the three steps, I am sure to improve your score."

Jiang Lili was speechless.

Wang Sangning said: "Sister, don't interrupt."

"For example, for example, the definition of a vector is a quantity that has both direction and magnitude. This sentence is abstract, right? You can give an example. For example, a brick of 5 kg is vertically downward, and it has both direction and magnitude. It's called a vector... This is a very simple definition, easy to understand, right?"

Jiang Lili was taken aback, because what Wang Sangning said was not "what are you going to buy again", but "what are you buying".

"It's the definition."

The rain is gradually getting smaller.

"No, you are not stupid." Jiang Lili said at the right time.

The car drove for a while, and finally arrived at the destination.

Yi Yang smiled slightly: "Of course I described these two steps very simply, but if you actually do it, the workload is still very large, especially when deriving some second-level formulas, the difficulty will not be easier than purely doing the questions. And it is very likely that because of the long time span, the later ones are mastered, and the former ones become rusty.”

Jiang Lili was slightly taken aback: "Huh? Me? Can I?"

Learning science, such a targeted matter, must be able to sum up a methodology that can be directly operated.

Wang Sangning was thoughtful.

"Unless some idealized models, such as mass points, rigid points, and point charges, are difficult to concretize and visualize, we can only rely on pure understanding, but most of the concepts, we can basically use this Way to go through it again."

Jiang Lili heard the two started chatting about study, smiled lightly, and concentrated on driving without disturbing them.

Wang Sangning felt her head was dizzy, but her heart was excited.

Because I made an appointment with the driving school master directly in the examination room, it was not the direction to go to the driving school at this time.

"Let's change to a slightly more complicated example. Another example is projection. Its concept is that the vector AB uses points A and B respectively to make a vertical line on the vector CD, and the vertical foot is A1B1. This A1B1 is where AB is. The projection on the vector CD, but this concept is too mouthful, how to give an example?"

Yi Yang smiled slightly. In fact, this is also a specific operation form of Feynman's learning method.

"Many students actually don't even understand the concepts."

Yi Yang's eyes moved, he didn't look back, but thought for a while and asked, "How do you usually learn?"

"Haha..." Yi Yang couldn't help laughing.

"The way of giving examples does not have to be oral. Sometimes, you can also use gestures. As long as you can describe the abstract definition in a visual way, it means that you really understand it."

She has always felt that people who can drive manual transmission are cooler than those who can only drive automatic transmission.

"The first step we have to do is to understand all the concepts first!"

"First of all, we must understand a core question, why is science difficult?"

"It's very simple, give an example."

After passing this section of the road, the road became empty again, but the rain seemed to be a little heavier, Jiang Lili frowned, lowered the car speed again and again, and increased the speed of the wipers again and again.

When Wang Sangning was thinking, Yi Yang said: "Learning this matter is actually two major actions separately, absorbing knowledge and applying knowledge, so you can talk about how to absorb knowledge points and how to use knowledge of."

"Sau Rui, Sao Rui, you guys continue."

Jiang Lili: "..."

Wang Sangning noticed that Yi Yang had stopped talking, so she called out curiously: "Yi Yang?"

Wang Sangning was sitting in the back row, leaning her head against the car window to watch the scenery outside, a little lost in thought.

Like many students who have a headache in science, the crux is that they don't know how to learn at all.

Wang Sangning's eyes lit up: "An example?"

Wang Sangning was taken aback for a moment, and quickly realized that Yi Yang was talking to her, and responded cheerfully: "I can't say I'm in a bad mood, but I'm very happy to be out."

Yi Yang was silent, suddenly a little stunned, he suddenly realized what was wrong with Wang Sangning.

Jiang Lili thought for a while and said, "No."

"But it doesn't matter. What this process improves is your ability. Knowledge is a reserve, and you can forget, but ability is different. Ability is a physiological function. Your way of thinking has changed, and you may even do it often. There will also be some changes in the structure of the body, such as a certain area that is often exercised, and new synapses grow out of the nerve endings..."

Jiang Lili thought for a while, then leaned into Wang Sangning's ear and whispered something.

Wang Sangning was dumbfounded.

"This...sister, you..."

Jiang Lili smiled and said, "But I can't give it to him yet."

(End of this chapter)