Youth is wrapped in the fragrance of knowledge, but the divergence of fragrance also requires courage.

On the podium, Weng Cui Peipei talked and quoted the famous mathematician Walgert from time to time, causing laughter. He didn't speak very quickly, and from time to time he leaked a faint smile, looking calm.

Weng Cui didn't speak on the stage for a long time, only about five minutes, after the science popularization was completed, Weng Cui straightened his collar, politely bowed to the classmates and teachers in the audience, everyone also applauded, Wei Lan was no exception, but Zhang Han on the side pursed his lips, glanced in the direction of Weng Cui, and patted his hands weakly. And Weng Cui also walked off the podium with everyone's applause and returned to his seat.

Zhang Tao also applauded and encouraged Weng Cui, and his big black back looked even brighter under the light. "Haha, Weng Cui did a good job, and his speech was better than what I prepared, more vivid and interesting. ”

Speaking of this, Zhang Tao paused, it happened that the classmates were also very face-saving, and applauded again, and Weng Cui on the seat did not squint, looking at the teacher, there was no flamboyance and pride in his expression, Zhang Tao saw Weng Cui like this, nodded, and thought: "Excellent students are also excellent in other aspects!"

Because there was no warm applause from Zhang Han this time, the applause quickly subsided, Zhang Tao on the podium, loosened his slightly tightened tie, and shaved his hairstyle back with his left hand, "Come, let me tell you about the simple application of the Walgert conjecture, which will help you learn vectors and solid geometry in the future, come and see, this ......"

Zhang Tao is a well-known special teacher in Hewei No. 1 Middle School, and he often extends his knowledge to everyone, and this time is no exception. As a senior mathematics teacher, he has a great interest in the proof of the Walgert conjecture, and it just so happened that yesterday he also had a simple study of the Walgert conjecture, from which he sorted out some mathematical applications and knowledge that can be understood by junior high school students, and it just so happened that he also designed a math problem on this basis, which can exercise students' thinking skills.

On the podium, Zhang Tao was full of energy, his hands kept writing and drawing on the holographic projection blackboard, the speed of speech was not fast or slow, and sometimes when he saw that most of the students were a little confused, he would pause, or repeat the knowledge just now. At other times, the flamboyant little belly will always converge when he is in class, and wisdom is reflected in the dark black pupils. Whenever he needs to explain the graphics, he will draw a picture casually, this is not that he is troublesome, sloppy teaching, not to catch up with the rhythm of the class, just because he draws a square with his hands, sometimes he is too lazy to turn back, draw a circle with his backhand, and the drawn figure can be directly calculated by the computer to calculate pi.

Under the podium, every student listened very carefully, and Wei Lan, who usually ran away in class (don't ask me where to go), also kept staring at the holographic projection blackboard, very seriously. Seeing that every student listened carefully in class, Zhang Tao also spoke more devotedly.

At first, most of the students looked a little puzzled and some even had empty eyes, but with Zhang Tao's explanation and the development of knowledge, many students' eyes gradually returned to focus, accompanied by his jokes from time to time, or self-deprecation, the corners of everyone's mouths began to rise slightly, the special teachers of the twenty-second century, the shady scenes are much less than before.

"Almost, that's it. Of course, I'm not going to prove it to you, because if I did, I wouldn't be here to teach you. As soon as the words fell, the originally quiet classroom instantly became lively.

"Hahaha. ”

"Not necessarily, maybe I'm a prodigy in the junior class!" said Ma Qiqi, who was sitting on the left side of the second row.

"Just you, forget it!" Ge Wen next to him also began to coax.

On the podium, Zhang Tao was very satisfied with his explanation, he was in a good mood, and he didn't criticize the two troublemakers, after all, active classroom learning is more efficient!

"Okay, okay! I came up with a question yesterday that is just in time to test you. Ma Qi wants to go to the junior class, so let's get the questions right first!"

Let's say it, Zhang Tao raised his hand, and a few lines of text appeared on his head.

Liu Feixu looked at the question for a while, and then began to write the question on the virtual straw board, at the beginning, her white cheeks were always glowing with a slight red light, and she wrote quickly, but as she reviewed the problem step by step, solved the problem, her expression gradually became a little serious, and her forehead began to gather, as she put down the pen, her expression did not relax, or carefully looked at the analysis of the question and writing.

As the first in the class and the first in the grade, Liu Feixu has attracted Zhang Tao's attention. Seeing Liu Feixu stop writing, but did not look up, he was a little puzzled, after all, he thought that this question should not be difficult for Liu Feixu.

As time passed, Weng Cui and Xia Xue raised their heads, and the squad leader Xia Xue looked around a little proudly.

To Zhang Tao's surprise, Wei Lan raised his head early. Thinking of this, Zhang Tao shook his head slightly, after all, he thought that Wei Lan was a very smart child, although his grades were not very good, but after the accident, the class was a lot more serious, coupled with the amazing stroke of the promotional animation short, Zhang Tao was very optimistic about Wei Lan, but Wei Lan's learning attitude of choosing to give up when he encountered difficulties made Zhang Tao a little disappointed.

Zhang Tao looked around, most people still didn't raise their heads, and finally he looked in the direction of Liu Feixu, and then looked at his watch. "Okay, okay, time is running out, which student has finished writing, wants to share the answer, raise your hand!" Zhang Tao clapped his hands, and the classmates raised their heads one after another, Liu Feixu was no exception, but her brows were not stretched, and her expression was full of solemnity.

"Aren't you a teenager class, come on stage and talk about it!" Ge Wen teased at Ma Qi.

"Ye is too lazy to go up, leave the opportunity to others!"

"I don't think you can do it, it's still a teenager. Hehe. ”

"You're looking for death. ”

.......

As soon as she heard that she was going to share on stage, squad leader Xia Xue couldn't wait to raise her hand, after all, Weng Cui had performed very well on stage before, and he would definitely not be left behind as a squad leader.

"Okay, come to Xia Xue, come and tell you. ”

As soon as the words fell, Zhang Han couldn't wait to applaud, and everyone looked at the squad leader Xia Xue with a smile, Xia Xue blushed, looked at Zhang Han angrily, and ran onto the stage with a virtual grass board.

Zhang Tao saw the boys and girls interacting in the classroom, he didn't say anything, just smiled, after all, at that time, he also had a girl who was going to applaud desperately! Suddenly, he shuddered, probably thinking of the teacher, and wiped his forehead, although there was no sweat.

Xia Xue's cheeks on the stage were slightly red, her snow-white skin, and her light blue Republican-style school uniform were very cute. A soft, but not cowardly voice sounded from the podium, "My train of thought is this, since the title is given。。。。。。 ”

The wind of the end of summer, with a hint of coolness, blew away the summer heat, blowing the hair of the girl on the podium, but not the heat in the boy's heart.

How many nights have I been the girl on the podium!