In front of the blackboard, Tao Li was lecturing with emotion, and the door of the lecture hall was hidden, so he didn't know that Chen Tianxiang was hiding outside the door and eavesdropping on his class at this moment.

After a morning of contact, all the students in this classroom were impressed by Tao Li's demeanor, and the class was not too good, so everyone was listening to the class very seriously, even when Chen Tianxiang was in class, they were not so serious.

Despite the door, Chen Tianxiang could still clearly hear the sound of Tao Li's lecture coming from inside the classroom. He is also a veteran teacher who has been engaged in mathematics competition training for more than five years, and although he can immediately judge the quality of the teacher's class, he can at least be able to distinguish whether the teacher who is lecturing is indiscriminately filling the numbers, or whether he has real talent and learning.

At this moment, Tao Li is making a final summary of the content of this section of number theory, which is clearly organized, focused, and the style of the lecture is particularly novel, giving Chen Tianxiang a refreshing feeling, it turns out that the content of this chapter of number theory can actually be said like this!

In addition, through the crack in the door, Chen Tianxiang can also vaguely see the board book on the blackboard and the courseware on the projector! Just by looking at it casually, Chen Tianxiang can distinguish that the courseware must be from Tao Li's hand, because the courseware he designed is too discriminate, basically after reading it once, the next time he sees it, he will definitely be able to immediately recognize that it was designed by him.

And to be able to arrange the board book so artistically, apart from Tao Li, Chen Tianxiang can't think of any other person who can do it.

For him now, as long as he can establish a relevant knowledge structure in his mind, it is not a problem to make a courseware, and he doesn't even need to think about anything, Tao Li can design this courseware with skillful skills alone.

What Chen Tianxiang cares about now is not at all how Tao Li designed such a courseware in such a short period of time, anyway, Tao Li's "fast" is well-known in the teaching and research department, and he wants to know now, Tao Li obviously doesn't know what the specific syllabus of the competition is, and what is he based on to make such a flesh-and-blood courseware?

Is it just imagination?

Or did he also use such a short time to master all this knowledge?

Is there really a man who is that fast?!

Even if Tao Li is a student who has just graduated from the mathematics major, not to mention that many professional courses are forgotten soon after the exam, the content of the high school mathematics competition is still quite different from the professional courses in the university, at least Chen Tianxiang does not think that if he changes him, he can do as well as Tao Li.

After listening to it for about five minutes, Chen Tianxiang retracted his gaze, originally thinking that Tao Li would not be able to hold such a scene, but now it seems that he is completely worried about himself, and Tao Li's lecture is even much better than his own.

"Then I don't need to go in again, just let him talk until the end of school! Who let him speak so well, and the students like him so much!" Chen Tianxiang shrugged his shoulders and muttered to himself as he walked back.

After a morning meeting, Chen Tianxiang also felt a little tired, and now he can finally rest for a while, and he is even ready to hand over the future competition training class to Tao Li, just to give Tao Li a chance to exercise!

After Tao Li finished talking about the number theory knowledge points, he looked at the time, it was already more than 2:40 in the afternoon, and Chen Tianxiang should come back too, so he didn't plan to continue to talk about it.

"That's it for the chapter on number theory, let's go back and review it again, and do the exercises attached to the back of the courseware. Teacher Chen should come back after a while, you should study on your own first and wait. Tao Li said with a smile as he stood in front of the podium.

Since Tao Lidu said so, the students were also very obedient and sat quietly below. began to seriously review what Tao Li had said before, and Tao Li himself rarely had such a little leisure time, sitting leisurely in front of the podium and playing with his mobile phone.

Since that time and Wang Zijing had a dinner appointment, the relationship between the two has become very delicate, and the conversation is much closer than before, but it is still far from the final relationship to be determined, so the last layer of paper has not been punctured, Tao Li thought about it, and felt that it should not be too fast, so he decided to deal with it first, and then move on to the next step when the time is ripe.

After sitting there and waiting for more than ten minutes, Chen Tianxiang was still nowhere to be seen, and it was almost three o'clock at this time.

"Could it be that there is a delay on the road?" Tao Li didn't know that Chen Tianxiang had returned to the office to rest at this time, and after waiting for a few minutes, Tao Li received a message from Chen Tianxiang.

"I think you're doing a good job, or you'll help me get out of class today!"

TF: What do you mean to see that I'm speaking well, and dare to say that you're back a long time ago?

After seeing the information, Tao Li hurriedly ran outside and dialed Chen Tianxiang's phone.

"Xiao Tao, why don't you call me for class. Chen Tianxiang's lazy voice came from the other end of the phone.

"Didn't you say you came back at half past two? It's three o'clock now. ”

"Oh, I just finished a meeting, I'm a little tired, little peach, you are a good person to the end, help me go to and after school, there is no time left, go back and invite you to dinner." Chen Tianxiang is completely smiling.

"Count you ruthless!" Tao Li held back for a long time, only holding back these three words. Of course, it's impossible to be angry, after all, the relationship between two people is still here.

After hanging up the phone, Tao Li re-walked into the classroom, "Teacher Chen called me just now and said that he couldn't come because of something, and I will take everyone to review the knowledge points of the competition in the next time." ”

Hearing Tao Li's words, there was a burst of cheers in the classroom, I don't know why, after listening to Tao Li's half-day class, these students were actually more willing to let Tao Li give a lecture, and Chen Tianxiang, who had taken them for more than a year, was "abandoned", maybe this is liking the new and hating the old?

It can also be called marrying a daughter-in-law and forgetting her mother?

Since he promised Chen Tianxiang, Tao Li naturally wanted to take classes well, but Tao Li did not seriously prepare for the follow-up content, fortunately, with the support of X-level competition training technology, even if there was no preparation, Tao Li would not be able to say that he had no way to start.

According to the requirements of the syllabus, in addition to elementary number theory, combinatorial questions are also one of the hot topics of the exam, including the drawer principle, the repulsion principle, the extreme principle and other related knowledge points. Tao Li only thought about it for a while, and immediately the knowledge structure related to the combination problem appeared in his mind, and he also had a clear idea of how to arrange class time and how to carry out teaching.

After thinking about this, Tao Li picked up the chalk again, continued what he had said before, and continued to review with them.

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