Xu Sichen remembered that since junior high school, every time the two of them reached the first day of school, they would buy all the teaching and auxiliary books they could use, and it was always good to be prepared. Originally, when they went to school this morning, the two of them said that they would go to the school's bookstore to buy books together after school at noon, and go home together after shopping, but Xu Sichen actually forgot about other teaching aids because of Tao Li's "Friends of Mathematics".

"Oh oh oh! I almost forgot!" Xu Sichen replied with a quick nod.

"Oh, hurry up! My mother made braised pork ribs, steamed lion's head and prawns at noon, and come with me to my house for dinner at noon!" With that, Zhang Xinyuan took Xu Sichen by the hand and walked towards the bookstore.

"Si Chen, is there any fun thing about Teacher Tao lately! I haven't seen him for a winter vacation, God knows how I've spent the past 20 days! Tell me about it!" Zhang Xinyuan asked as he walked.

"Miss, isn't it possible that I don't have you on winter vacation? I just saw Teacher Tao today, okay?" Xu Sichen replied helplessly.

"But Teacher Tao is your homeroom teacher after all! You must know more than me! I really envy your class, I can all be assigned to the original class, it's amazing, why do you say I'm so miserable, when I first entered the first year of high school, I was almost able to be assigned to Teacher Tao's class, I thought that when the second year of high school was re-classified, there was still a chance to be assigned to Teacher Tao's class, but I still stayed in class 17 and didn't change, it's just amazing!" Speaking of this, Zhang Xinyuan looked sorry.

"You are content! Teacher Tao is also the math teacher of your class! You can watch it up close at least once a day, how good! And the math results of your class, Mr. Tao only took one semester to bring you to the second level of the grade, so that our class does not dare to relax at all, for fear of being caught up by you! You don't know how many students in the grade are envious of your class!" Xu Sichen said angrily. That's not enough!

"Oh, I'm not comparing myself to you! Hurry up, hurry up, there are fewer people in the bookstore at this time. Zhang Xinyuan stuck out his tongue at Xu Sichen, and then pointed to the bookstore not far in front of him and said.

As the only bookstore in Jinling Middle School, the bookstore's business is needless to say, every day after lunch, many students go to the bookstore to buy books, at this time just after class, many students are still eating, so there are not many people in the bookstore.

After the two people walked into the bookstore, they walked directly towards the special area of teaching auxiliary books, the bookstore is not big, the shelves on both sides are full of all kinds of books, a very long and large table in the middle, there are various science and education auxiliary books that sell well in the bookstore, and there are many extracurricular books near the door checkout, including all kinds of magazines and so on.

Because they will buy teaching aids every semester, the teaching aids purchased by Zhang Xinyuan and Xu Sichen have also been fixed, except for the two liberal arts courses of Chinese and English, they do not need to buy teaching aids, and the rest of the science courses, they will choose the series of Wang Houxiong, after all, in the high school education stage, this series of teaching aids represents authority.

If it had been placed in the past, Xu Sichen would definitely not have read it, so he directly picked up a few necessary Wang Houxiong series of teaching aids and went to check out, but today, she picked up a physics reference book for the first time and looked at it.

This is general, not to say that the Wang Houxiong series of teaching aids is not good, compared with other brands of teaching aids, Wang Houxiong is already very good, but compared with the "Friends of Mathematics" that he just got at noon, Xu Sichen always felt that there was something missing from these teaching aids in his hands.

Xu Sichen couldn't say exactly what was missing, but he just felt that it was not as good as the one written by Tao Li!

"Si Chen, what are you looking at? Hurry up and check out, we can go back to eat after we finish buying." Seeing that Xu Sichen was still looking at it, Zhang Xinyuan couldn't help but urge.

"Oh, okay, let's go, let's settle the bill!" Xu Sichen closed the book, and then said with the three teaching aids of Materialism.

"Why didn't you take math? As he spoke, Zhang Xinyuan also deliberately took a mathematics teaching aid and handed it to Xu Sichen and said.

"I don't need math anymore, I already have one. Originally, Xu Sichen planned to tell Zhang Xinyuan about "Friends of Mathematics", but when he thought that Tao Li told them to keep a low profile in the morning, he said so.

"It's all there! Alright. Zhang Xinyuan put down the math reference book in his hand and said.

"Let's go, let's settle the bill, I'm hungry too. Xu Sichen smiled, took Zhang Xinyuan's hand and said.

Even if the matter of buying books has passed like this, the study life in the second semester of the second semester of high school has really entered the intense class from the second day of school.

Since getting the "Friends of Mathematics", the students of Class 18 have never bought any other mathematics reference books, because after using the book compiled by Tao Li, they no longer want to use other series of teaching aids, just like listening to Tao Li's mathematics class, and then listening to the rest of the teachers' lectures, they will feel bored, which is a truth.

With the existence of this "Friends of Mathematics", Tao Li also appropriately reduced it on the original basis when assigning after-school homework, so that the original small homework in Class 18 became less, but fortunately, there is still a reference book in his hand, and there are many exercises in the book, and students can also rely on these topics to "supplement nutrition".

And the reputation of this "Friends of Mathematics" among students is also getting better and better, not only in class 18, but also in the other three trial classes, students are also full of praise for this teaching book, only in the past week, in a questionnaire survey, students are as satisfied with this book as high as 100%!

This shows that this book is good enough for the more than 200 students who tried it out!

However, Tao Li did not easily print in batches because of such a high level of satisfaction, after all, the beginning of the school year has passed a week, and the course has just begun, so we still have to wait to see what the follow-up situation is.

On Sunday afternoon, according to the recruitment regulations, day students do not need to come to school for self-study, so Zhang Xinyuan and Xu Sichen made an appointment to come to Xu Sichen's house, ready to have dinner together at her house, and then study together.

After dinner, the two of them came to Xu Sichen's small study, Xu Sichen, as usual, took out the book "Friends of Mathematics" and was about to read it, and Zhang Xinyuan, who was sitting next to her, also saw this book by accident, so he asked curiously,

"Si Chen, what kind of book is this, why have I never seen it!"