"That's all for today's lesson." Listening to Li Mu play "Serenade" again, Luo Che quickly pointed out a few problems, and said that the class time was over.

Li Mu obediently stood up from the piano, but had no intention of leaving, but ran to the sofa and sat down at a trot.

In this regard, Luo Che didn't say anything, as long as Li Mu wasn't noisy, he didn't actually mind that she stayed here to watch them practice after the piano lesson, and Li Mu stayed almost every day these days.

When people are serious about something, time will actually pass quickly, and before you know it, two hours have passed.

The first to react was not Luo Che, but Luo Che's stomach, it was seven o'clock in the evening, and they could already feel obvious hunger before they had eaten dinner.

"That's all for today." Stretching his muscles, Luo Che stood up from the piano.

"Hmm." Xu Jingqiu nodded lightly and carefully put her violin back into the case.

Turning his head, Li Mu was still sitting on the sofa doing his homework at school, and at the same time, Luo Che also realized that Fu Bo usually took Li Mu back at this time, but today Fu Bo didn't come to the piano shop at all because he was not feeling well.

Although it is only seven o'clock in the evening, which is not too late, it is not safe for a twelve-year-old girl to go back by herself, and it is obviously inappropriate to ask Fu Bo, who is unwell, to pick up Li Mu......

Exhaled, Luo Che turned his head and motioned to Xu Jingqiu, "You take the car back first, the car should still be waiting downstairs, it's a big night, it's not safe to let this girl go back by herself, I'll send her back." ”

This time period, except for the most deserted North City District. The rest of the city is so lively, let alone the most prosperous of the city.

In other words, the cars on the road are also very rhythmic, otherwise Luo Che would have taken the car directly to send Li Mu back, but now, it is estimated that the car is not as fast as walking.

So. can only let Xu Jingqiu take the car back first, and after he sends Li Mu home, at that point in time, the peak period should almost have passed, and the road is not so congested, just take a taxi back when the time comes.

"Hurry up, I'll send you back, it's seven o'clock, aren't you hungry?" glanced at Li Mu, who was still lying on the table and burying his head in his homework. Luo Che said.

"Wait, wait, there's one last question left......"

Seeing Li Mu's anxious appearance of scratching his ears and cheeks, Luo Che didn't urge again, but walked behind her in two steps, and glanced condescendingly at the problem she was doing, which was a mathematical application problem, to find the area of a part of a figure.

After a quick glance at the question, Luo Che suddenly rolled his eyes speechlessly. There was a bit of contempt in his eyes, of course. He was not despising Li Mu for not being able to do such a simple problem, but despising the person who came up with this mathematical application problem.

In fact, this math application problem itself is not difficult, the problem is that the question of this problem spares several bends, and all kinds of word games are played, which really makes Luo Che speechless. I want to despise the questioner again.

What the hell are you playing, and it's going around a lot of bends, and it's biting words and playing word games, a math problem can be used as a sentence analysis problem, and this is still a question for elementary school students. The person who wrote the question has a hole in his brain, right?

Looking at Li Mu like this, it was obvious that he was bypassed by the problematic questioner, and he probably didn't want to go around for a while, but Luo Che didn't have so much time to wait for Li Mu to figure it out.

Quickly pulled out a pen from the side, regardless of Li Mu's surprised look, Luo Che calmly took the pen and drew a few dotted lines on the graphics of the application problem, and then threw the pen away.

Li Mu was confused when she saw this series of actions, but when she fell on the math application problem again, the whole person was stunned, "Huh?!" ”

"It's strange, it's obviously the same question, but there are two more dotted lines on the image, why is it inexplicably simpler?" The changes from one after the other are too big, it was a question that she couldn't figure out even if she wanted to break her head, but after Luo Che drew two dotted lines, she found that this question was so simple.

"By the way, my mother said before that the teacher used to have super good grades, and he was the first ...... in the grade in every exam" After finishing the question in three or two, Li Mu looked at Luo Che and became more and more curious, she felt that her piano teacher seemed to be much more powerful than she imagined.

"Watch me do what? Hurry up and pack your things, I'll send you back, and if you don't grind any longer, dinner will be postponed until nine o'clock......" Looking at Li Mu, who was distracted, Luo Che said a little angrily.

"Oh, oh!" When Luo Che said this, Li Mu immediately hurriedly packed up his things, and at the same time, he asked a little worriedly, "Teacher, I heard my mother say that when you were in school, you never did your homework, but your grades were very good, and you were the first in the grade every time?" ”

"Seems to be the case." Luo Che replied nonchalantly.

"Teacher, how did you do that? Obviously I never do my homework......" Hearing Luo Che admit, suddenly, the curiosity on Li Mu's face became more and more obvious.

"First of all, there is a problem with your comprehension ability, if you don't do your homework, it doesn't mean that your grades will be bad......" It seems that he was a little annoyed by Li Mu's question, and it seems that it's okay to wait anyway, plus with the same mood as an education student, Luo Che said calmly, "Whether your academic performance is good or not, to put it bluntly, it depends on whether a person's brain is clever enough, and you are obviously not smart enough just now, so you will be surrounded by that math problem." ”

"Hmm!" was said by Luo Che to be unwitty, Li Mu suddenly pursed his mouth, "Teacher, you are a college student, of course it is easy to do math problems for elementary school students." ”

"That's because you didn't understand the nature of the math problem."

"What essence?"

"The question itself is not difficult, but the questioner wants to increase the difficulty, but it can't go beyond the learning range of primary school students, and as a result, the question's brain is pumped, and the effort is in the wrong place......

"The question of that math problem is stinky and long, but in fact it is a lot of nonsense, and the really useful information in it adds up to no more than fifteen words, and the other big bunch of words are to confuse you students, and at the same time, they also manipulate words and graphics, and make the originally simple problem difficult to twist and turn."

"And like I said, the work is in the wrong place, this extra difficulty is almost not compatible with mathematics, what is needed is the thinking logic ability and information processing ability of the person who does the problem, the simple point is that the brain must be clever, as long as you can eliminate the information that misleads you, the solution to this problem will become clear at a glance, otherwise you will be like you will be bypassed in and unable to get out." (To be continued.) )