"Huh." Fang Yu couldn't help but scream, he could see clearly just now, except for the box of chalk in the top drawer, the other three drawers and the two sliding doors were empty.

Zheng Minghui didn't give him time to think, and then opened the sliding door on the right, and there was a box of chalk lying inside.

What surprised him even more was that the two boxes of chalk had the exact same word "square" written on them, and it was definitely his own handwriting.

What's going on.

While Fang Yu felt strange, Zheng Minghui did not stop moving, he opened the drawers of the lower three layers in turn, and in each drawer lay a box of identical chalk, on which the word "Fang" was written.

At this time, Zheng Minghui stopped, smiled and asked Fang Yu, "Please make sure again, did you put that box of chalk in the first drawer?" ”

"I'm sure." Fang Yu said subconsciously, and then added: "Everyone has also seen it." ”

"Alright, then it's up to you to pull open the top drawer." Zheng Minghui turned sideways and motioned for Fang Yu to try it himself.

Fang Yu didn't hesitate, he stepped forward and pulled the top drawer open, the inside became empty, and the chalk box he had put in with his own hands at that time had disappeared.

And the next moment, Zheng Minghui reached out and took the chalk box from the sliding door on the right.

Strange to say, with his action, the other sliding doors and chalk boxes in the drawers disappeared at the same time.

"I promise, this storage cabinet is an ordinary storage cabinet bought in the supermarket, there is no mechanism in it, I don't believe you can check it." Zheng Minghui took the chalk box and smiled at Fang Yu.

"No need, I believe Mr. Zheng."

"I promise that this chalk box is the one you just marked, and I haven't touched it the whole time."

"I believe that, too."

"Thank you for your trust in me, classmate Fang Yu, you can go back to your seat." Zheng Minghui said with a smile, and then asked under the podium: "Then the students may have to ask, why did this chalk box suddenly change its position, and it seems that even the number has changed?" ”

Someone below replied, "It should be a space displacement spell." ”

"That's right, that's right." Zheng Minghui gave a thumbs up to the classmate, and then explained: "The so-called space displacement spell is simply to exchange the positions of two similar spaces, and this spell involves the exploration of optical principles, the application of illusions, and the principle of spatial transition. ”

"For example, just now, I designed a space displacement technique between the top drawer and the other three drawers and two sliding doors, so you can see that the top drawer is empty, while the other drawers have chalk boxes."

"Of course, this chalk case has not been copied five copies, so when I take the chalk case out of any of the drawers, the chalk cases in the other drawers disappear."

"Do you understand?"

"Understood." The students at the bottom replied together.

But some people also asked: "Teacher, this kind of space displacement technique doesn't seem to be very practical." ”

"Not practical? Are you really? too_young, too_simple. Zheng Minghui shook his head and said, "You think that the purpose of all spells is for fighting?" Aren't life skills good? ”

"Mr. Zheng, can you give a specific example?"

"Of course, for example, it is used to hide private money." Zheng Minghui said seriously, causing a burst of laughter from the audience.

"Don't laugh, I'm serious." Zheng Minghui pressed his hands weakly, signaled everyone to be quiet, and then began to tell the story.

"As everyone knows, my wife is very strict with me, and the economic power is usually in her hands, so sometimes I want to buy a pack of cigarettes, or go out to play cards, what should I do? You can only hide some private money. ”

"She has to check the bag every day, and I don't feel at ease when it is hidden elsewhere, so I designed a space replacement technique on my desk, replacing a hidden compartment on the desk drawer and the ceiling of the bathroom."

"This spell has been hidden from my wife's many searches, and for a whole year he thinks I have no private money."

"And then?" The student couldn't help but ask.

"Then there was a leak in the ceiling of my bathroom, and my wife asked someone to fix it, and it turned out that I had 20 yuan and half a pack of cigarettes left on it......"

Speaking of this, Zheng Minghui showed a painful expression on his face: "So I came to two conclusions later. ”

"What conclusion?" The students' interest was completely piqued.

"First, no matter how cunning the hound is, it can't fight a good fox. Second, if you have a lot of money, you should be separated, which is the same as not putting your eggs in one basket. ”

"Poof......" There was a burst of laughter from the audience.

"Hahaha, teacher, you're so funny."

"20 yuan is also called a huge amount of money? Teacher, you are so pathetic. ”

"Are you so afraid of your wife?"

"It's not fear, it's respect." Zheng Minghui said with a straight face, and when everyone was almost laughing, he pointed at the stage with his fingers, and a handout, a pocket version of the cashier's cabinet and half an eraser appeared on the podium of each classmate.

"Please open the handout first, and I will explain to you the basic principles of the space displacement spell."

Zheng Minghui began to lecture, and I have to say that his level of class is really good, clearly organized, focused, and a spell that was originally very complicated was clearly broken down by him.

Everyone was listening attentively, except for Fang Yu, although it was the first time to take the "Space Spell" course, he understood all the content of the lecture at a glance.

Because the Divine Court Acupoint contained Bai Ze's fiery eyes, Fang Yu had now completely evolved into a scholar, and the course that seemed complicated to other classmates was completely understood by him after reading it once.

So he once again turned to the back of the handout with interest, although this handout was about "space displacement", but the second half of the handout had a lot of derivative research on this spell.

These contents were summarized by Zheng Minghui as extracurricular research, but Fang Yu used the time in class to start studying.

As he studied, he began to practice according to what was said in the lecture notes, his fingers pinching the complex mudras and the words in his mouth.

This scene naturally fell in the eyes of Zheng Minghui, who had a really good temper and did not interrupt him, but continued to lecture.

Twenty minutes later, Zheng Minghui finished the basic construction skills of the "Space Replacement Technique", then knocked on the podium and said, "In the next time, please use the pocket storage box and eraser on the desk to complete the construction of a Space Displacement Technique." ”