This plan was much simpler than the previous movable type printing, and after some preparation, the first shipment was completed in just a few days.

Ye Hui's exam can't wait, this time is stipulated, and the rules can't be broken. Moreover, during this time, everyone is very active and serious in their studies, and the pass rate must be extremely high.

The day of the exam has finally arrived.

Thanks to the excellent order in the examination room, everyone was quiet, and Ye Hui was a little louder, and almost everyone could hear it.

Ye Hui said: "This exam is a summary of your time, and I hope you can receive a lot of goods here." Although it was only a month, there were still many students who made a deep impression on the teacher, and whether you go or stay as a teacher, you will remember this unforgettable time.

"Haha, it's a bit like you're going to separate, but I believe that most of the students can stay, even if they get out of this course, they can come back next year, all in all, let's work hard and take the exam seriously.

"Let me tell you another news, the students who stay can enjoy the 'blackboard' recently invented by the teacher, which can increase your learning efficiency, although it is not as practical as movable type printing, but it is also a good hand in teaching. So I hope you will face this exam seriously in order to stay. ”

Ye Hui ended his speech passionately and generously.

Originally, he still closed his eyes and opened his arms slightly, intending to hug the cheers and applause of the students, but after waiting for a few seconds, there was a dead silence below.

It shouldn't be. Ye Hui thought, even if his speech is really not good, everyone should mean it somewhat.

"Sir, it's time for an exam." It was Wen Ji who secretly pulled Ye Hui back to his position.

Ye Hui sat down a little depressed, only to find that there was a sign standing on the table, which read: Anyone who speaks will be treated as a failure in the exam.

Look at the handwriting, oh? It's my own handwriting. That's fine.

The exam officially begins.

Sure enough, as Ye Hui expected, some idle people still took risks when they encountered this life-and-death situation, and made the most common cheat sheet in the exams of later generations.

But the ancients are ancients after all, and Ye Hui, who is a modern person himself, is a habitual offender of making cheat sheets as a generation of scumbags, plus before the exam, Xiaoxiao found the common means of making cheat sheets from the ancients.

So there were such voices in the examination room from time to time.

"Why did you arrest me?"

"Cheating is strictly prohibited in the examination room, if there is a violation, it will be directly counted as a failed grade, and you will not be allowed to set foot in the academy in the future!"

"I was wronged! I didn't! ”

"May I be searched?"

"You search for it, if you wronged me......"

"If I wronged you, Mr. Shui Jing will call the shots for you."

The man was then taken to a small room and searched.

A few minutes later, the patrolling soldiers came to Ye Hui with insoles full of small characters.

Ye Hui asked from afar with a strong masculine atmosphere, almost nauseated and vomited, admired the soldier and waved his hand to ask him to drive the cheater away, and at the end he did not forget to remind the soldier to wash his hands well.

At the end of the day, more than a dozen or twenty cheating people were caught, all of which were underwear, socks, and the inside of the caftan written in small characters, all of which were common cheating corners of the ancients.

The exam lasted three days. Since the first day of being kicked out for cheating, most of the students have kept to themselves and did not dare to do anything they shouldn't. They compared themselves to the examination machine, just answering the test papers seriously, and not daring to have any half-heartedness, so as not to be caught again and kicked out of the academy.

The exam ended successfully, and Ye Hui was left to Wen Ji to do the coordination, and her prestige in the school may be better than Ye Hui herself in some places.

Ye Hui is going to a very important place now.

When I got to the side of the factory, a few large pieces of cloth wrapped around the boxy things below, and there were several small bamboo baskets on the ground filled with a lot of chalk cut into a cylindrical shape, which was chalk.

After Ye Hui thanked everyone who had contributed to the work, he pulled up a carriage, called a few strong men, and walked all the way to the academy with blackboards and chalk.

Behind the blackboard is a small protrusion specially made after the craftsmen came to the academy for a field trip, which can be combined with the concave wall behind the podium to form a wonderful mortise and tenon structure, without the need to use nail adhesive or anything, Ye Hui has to admire the real capable people or these capable craftsmen.

After the blackboard is installed, the cloth on it has not been opened yet, so I will wait for some surprises for the students when school starts tomorrow.

The next day is the time for school. After a few days of exams, everyone was mentally exhausted, and they were only waiting for the results of the exam to be corrected quickly.

The students in each class were very curious about what was so mysterious here, but they were afraid of Ye Hui's iron fist, for fear that they would break any rules, and they would pack their luggage and go home directly on the same day.

Finally got through to class.

The teachers of each class stepped on time to the classroom. It's all a mysterious introduction to the "blackboard", and then the curtain is slowly unraveled in the eyes of all the people.

Scold! What a big black board, it is really a "blackboard"! What is there about this board that can make our classes easier?

The crowd couldn't help but wonder.

Later, when the class began, I saw the teacher sketching with a white pen on the board.

It turns out that this is the case, and it is indeed commendable, but if you don't just write and draw on the board, what is there to be spirited.

That's what everyone just thought.

I saw the pig's brush in the teacher's hand gently sweep the blackboard, and the handwriting disappeared and became a clean black board.

There really is some mystery in it.

The student who didn't know that the blackboard could be erased looked interesting, and forgot to record what Mr. said, but with the shaking of Mr.'s hand, the word was erased before he regretted it.

The students spent the morning in the mystery of the blackboard.

In particular, students and teachers majoring in painting and mathematics can't help but be overjoyed that they can finally draw a complete picture to prove that they are not only theorists, and can finally deduce a wave of problems in class.

So everyone knows how important and convenient it is to have a blackboard in class.

The initiator, Ye Hui, was complacent, pretending to be elegant and delicate, standing in the open space in front of the private school with his hands dangling.

Diao Chan smiled: "You just want to accept the students' thanks, then you have to wait for them to disperse, and now you are hanging around here and no one notices." ”

"No, no. The gentleman just sat tired and got up for a walk. Ye Hui naturally wouldn't admit it.

Diao Chan didn't pay attention to his virtue, and only said: "Sir, the examination and teaching matters have been settled, so when are you and I going to deal with it?" ”