Two minutes later, Song Tingchuan also finished it.

He put the homework in front of Su Nan

"Come on, good girl, help me see, is there any problem for the first time to do such a brainless question, a little unaccustomed."

Su Nan smiled and took Song Tingchuan's homework and draft book.

Song Tingchuan's font has a unique atmosphere of boys' fonts, biased in line letters, but the pen is sharper, and it can be appreciated as calligraphy on weekdays, but it will be scribbled if you read the papers.

Su Nan raised his eyebrows and looked at Song Tingchuan

"You can't write your words well"

Su Nan knew that it was not impossible for Song Tingchuan to write a standard regular script, it all depended on his mood.

Song Tingchuan touched his nose, "The regular script slows down the efficiency." ”

He wasn't used to thinking too much at once, and if he still paid attention to the font, he wouldn't be able to keep up with Su Nan's speed.

He was two minutes late.

The daughter-in-law is too strong, and he is really too difficult.

Su Nan nodded and didn't say anything more.

After picking it up and looking at it, he pointed to the last big question of Song Tingchuan's physics

"Didn't you notice this question, you missed a condition."

"Hmm"

Song Tingchuan leaned over suspiciously, but in fact, his heart was already happy.

Hey, he's deliberately wrong.

In order to let Su Nan talk to him more, he really had good intentions.

Because he wants to maintain his genius character, he can't let himself be too wrong too much, so he finally found a physics problem with a hole and jumped down honestly, and this stupid girl finally took the bait

The subject of physics is really getting more and more popular with him.

Song Tingchuan turned his head and looked at Su Nan, who was seriously giving him the analysis question, his side face was fair and delicate, and the sun cast a soft halo around her, so beautiful that she was not like a mortal.

The voice in his ears was as clear as a spring, and it revealed a gentleness and patience that was completely different from the usual coldness, Song Tingchuan's heart swelled with wisps of sweetness, and he only hoped that time would pass slowly, and then slowly.

"Look at this, isn't the idea much clearer?"

As Su Nan spoke, he gently revised Song Tingchuan's draft book with a red pen, and turned his head to ask him.

Song Tingchuan quickly came back to his senses, but he pretended to bow his head and ponder, and only grinned after a while

"Worthy of being the squad leader."

Su Nan didn't notice Song Tingchuan's abnormality at all, and he didn't feel that the distance between the two was a little close, so he only continued to point to Song Tingchuan's other solution

"You see, and here, your solution can take this condition into account, but you seem to find that it doesn't match the previous answer, so you forcibly use another way of thinking to break the answer back."

Speaking of this, Su Nan sighed helplessly

"Song Tingchuan, sometimes what you think at the beginning is not necessarily right, when you do the question, you have to make each method independent, pretend that each question is new, so that the idea will not be limited, and the choice of multiple solutions to do the question is also a test method for your previous answers."

Song Tingchuan nodded with a teachable expression

"So that's the case.,I said.,I always feel weird.,I just thought of a method.,But after going through it in my head and finding that it didn't match the answer I had at the beginning.,I thought that that method wasn't feasible.,I didn't write it.。

Su Nan smiled, took his draft book, pointed to one place above and asked Song Tingchuan

"Is this method right?"

Song Tingchuan nodded hurriedly, his eyes shining

"Yes, yes, hehe, we really have a tacit understanding."

Su Nan smiled, "So, you have to write it next time, and compare it before and after, so that it is easier to find the problem." ”

Song Tingchuan smiled

"It seems that my problem is quite big, and I will work hard as a squad leader in the future, so I'll come to you to practice on weekends."