After confirming that the plane had arrived, Ren Yan didn't bother to say anything more.

Let Wang Bo throw the drone in his hand, and take the students of Class 9 to walk towards the low-temperature kiln built together.

Because the area of the farm has already been allocated.

This time, the students did not disperse, but gathered together.

This is convenient for Ren Yan to use bricks.

As for whether the drone will fly around if it doesn't continue to be held hostage?

Ren Yan didn't worry about this at all.

Unless the staff operating the drone doesn't want to do it, they will never dare to let the drone wander blindly.

Netizens have now spent money to watch this live broadcast.

This is if the operator doesn't see what they want to see because of the operator's 'mistake'.

You don't have to think about it to know that netizens must have washed this staff member out immediately.

How irritable netizens are now~

And it looks like the staff understands this too.

After the drone was let go by Wang Bo, he adjusted his position slightly, stabilized in a position slightly higher than the ninth class, and slowly moved forward with the footsteps of the ninth class.

That perspective simply reflects the word professional vividly.

As for himself, he was slightly melancholy.

Originally, I thought of coming to a wilderness for drone live broadcast, which should be more comfortable.

But Na Cheng thinks that the 'sense of part-time work' here is actually stronger than when he was in the program group.

When he was in the program group, he still had some 'autonomous' permissions, but here, he was completely led by others~

The drone operator was slightly unbalanced at this time.

And Ren Yan has already led people to the area of the low-temperature kiln.

After casually clearing out a place and taking a shovel, Ren Yan looked at the students of Class 9 and the drone floating above their heads:

"Well, after a while of hard work, you've made enough bricks through the low-temperature kiln."

"Then it's time to turn these bricks into houses!"

"As for what needs to be used, you've seen it too."

"A shovel, a pile of bricks, and enough dirt."

As he spoke, Ren Yan began to draw around with a shovel, and after encircling a boxy position, Ren Yan dug with a shovel without saying a word.

"The first step in building a brick house is definitely to make a foundation."

"Under normal circumstances, steel bars, concrete and other things need to be used to build a base, and hard bamboo is also needed to be reinforced."

"And the depth will generally have a few tens of centimeters, if the higher the floor needs to be built, the deeper the depth will definitely be, after all, only in this way can the house be more stable on the ground."

"If you look at the principle, it's similar to plant growth, after all, what grows out of the ground tends to be more resilient."

"As for the more specific reasons, there are mechanics and materials science, and you can look at this part privately."

While speaking, Ren Yan had already dug out a lot of positions.

Because the land on the farm is relatively soft, it is not very difficult to dig.

Class 9 students also wrote down the two subjects of mechanics and materials science.

After following Ren Yan for so long, they have become completely accustomed to Ren Yan's behavior of suddenly interpolating other knowledge points when they talk about it.

If they are interested, they will still go to see it when they are bored in private.

After all this time, they have seen a lot of things purposefully.

And netizens have some emotion.

After all this time, this familiar feeling has finally returned! ’

They're happy to watch it again! ’

And because this time it was real money.

They are more serious than the students in Class 9.

The money has already been spent, so it can't be spent in vain!

It's their truest thoughts at the moment.

Even they themselves didn't realize that there would be such a change.

After digging for a while, Ren Yan spoke again:

"However, what I just said is to build a house under normal circumstances."

"It doesn't apply to what we need to cover now."

"What we're going to build now is an adobe brick house in the countryside."

"Because the floor area is not very large, and there is no need to withstand more pressure, the foundation does not need to be deep, and a dozen or twenty centimeters is enough."

"And it doesn't need to be supported by something like rebar, as long as it can be done at a certain depth in the ground, it won't collapse."

Saying that, Ren Yan had already dug the foundation he needed to prepare thoroughly.

After roughly measuring the height with a shovel, Ren Yan jumped out of the foundation.

This foundation covers a small area, only about four or five square meters, and the depth is more than ten centimeters.

Also because of the demonstration, Ren Yan was too lazy to make it too big and too deep, and he would finish it with a meaning.

It's not that Ren Yan is irresponsible, it's really because he can't do it.

Now that I have a brick house, why bother to build a new one?

Is it for students?

Then you can't do it~

It's better for the students to build their own houses.

Only in this way can they grasp a knowledge more effectively.

And the things I made out by myself have a greater sense of accomplishment~

That's what they said.

As a teacher from the perspective of students, how could Ren Yan bear to strip them of this rare experience?

So at this moment, Ren Yan, who cut corners, did not have any burden in his heart.

"Teacher, what's next?!"

Seeing Ren Yan jump out of the foundation and throw down the shovel, the students of Class 9 couldn't help but ask curiously.

"What's next?" Ren Yan glanced back at them, and naturally replied, "It must be to build a house, otherwise what else can you do." ”

"But before that, there's another work that needs to be done."

"We need to mix the excavated soil with water and plant ash to form some viscous clay."

"They are the main support force for building a brick house."

As he spoke, Ren Yan had already brought some water from a well not far away.

Later, some plant ash was removed from a nearby low-temperature kiln.

After casually mixing it, it began to stir.

After it turned into a sticky mess, Ren Yan stopped what he was doing and said:

"This pile of clay is mainly used instead of cement, and it can make the two adobe bricks bond together perfectly."

"Although the effect is certainly not as good as cement, because the adobe bricks are almost exactly the same material as these clays, they actually don't stick very badly to each other."

"It's more than enough to build a relatively solid brick house."

Ren Yan said, and looked for what kind of wood was used nearby.

Although now there is a foundation, a brick, and a binder.

But the most basic framework still needs to be built.

However, when Ren Yan was looking for materials, Li Cheng said curiously: "Then Teacher Ren, since this thing is not as easy to use as cement, why don't we just use cement?" ”

Hearing this, Ren Yan turned his head and glanced at the other party: "Nonsense, do we have cement now?" ”

Li Cheng scratched his neck embarrassedly: "Teacher Ren, I didn't mean that, I mean, why don't we just make cement?" ”

"Because I can't do it." Ren Yan replied casually:

"Although the cement recipe is not difficult, only some limestone, clay and a small amount of iron powder and some dispensable gypsum are needed."

"But it needs to be calcined, and it needs to reach a temperature that is about the same as the melting point of iron."

"Do you think these low-temperature kilns can reach that temperature?"

Hearing this, Li Cheng smiled bitterly for a while and stopped talking.

Although Li Cheng doesn't know how much the specific temperature of the current low-temperature kiln can reach, it is definitely not able to calcine iron.

In fact, on the first day of the low-temperature kiln, they wondered if they could make some iron fire-gathering trays.

To this end, they also deliberately found some iron tools that were not used at all and threw them into the low-temperature kiln.

But no matter how long it is calcined, the best result is that the iron becomes a little dark red and slightly soft.

There is still a long way to go before it can be forged, let alone melted.

So after Ren Yan said this, Li Cheng didn't have any thoughts.

But at this time, Ren Yan looked at the students of Class 9 with great interest:

"Actually, it's not impossible for you to make cement, teacher, I can take you from the low-temperature kiln all the way to the iron-smelting furnace, with the temperature of the iron-smelting furnace, burn some cement, and there will be no problem."

Hearing this, the students' eyes lit up.

But then it was dark because of Ren Yan's next sentence.

"But don't think about building this house for the time being, and when you can burn cement, it's almost time for school to start."

Hearing this, the students were speechless for a while: "Then what are you talking about..."

"Isn't the end result all incomprehensible in a short period of time..."

"It's fun~" Ren Yan smiled to himself.

“....”

The students were speechless.

you, if it weren't for the fact that I couldn't beat you, I would definitely let you see the anger of the students today.

Do you tease your own students like this?!

The students of Class 9 felt a burst of grievance.

And netizens were completely happy.

Seeing this kind of picture of laughing at the students of Class 9, they sincerely felt relaxed.

Isn't this one for your own good?!

Sure enough, Teacher Ren still understands them!

But then, they were a little curious.

Teacher Ren's goods can not only build houses, but can also smelt iron?

Isn't this thing a little too over-the-top!

Is this something that a teacher should be able to do?!

couldn't help but have a trace of expectation in the hearts of netizens.

They are looking forward to Ren Yan being able to come up with some more things.

At this time, Ren Yan put his mind back on building a brick house.

After teasing his own students for a while, Ren Yan was in a good mood, and quickly found what the trees were for.

Under everyone's gaze, Ren Yan jumped into the foundation again with these trees slightly the thickness of a bowl.

Began to fasten the trees along the four corners of the foundation, and explained:

"Remember, even if it's a brick house, you need to set a contour first."

"And this time, unlike the previous thatched huts, we still need to make a roof on top of these outlines."

"So these trees must be as thick as possible, and the thickness of this bowl mouth is the most suitable."

As he spoke, Ren Yan had completely set the trees at the four corners, and in the middle of the trees at the four corners, he inserted two trees with an opening with the word 'Ya' at the top.

Then a thicker tree was sandwiched between the two trees.

"The thickest piece of wood is the beam of the house, and when all the walls around it are fixed, you can build a ceiling profile along the beam, and then place the tiles evenly on it."

"The firing of tiles is the same as the firing of stone bricks, I won't go into too much detail here, you can go down and burn some tiles yourself."

After that, without waiting for the students to react, Ren Yan began to take the stone bricks and build them along the perimeter of the foundation.

Seriously, he's a little weak right now.

Ren Yan forgot about this tile at the beginning, and it wasn't until now that he needed to build a house that he remembered it...

It's really a bit of an afterthought.

However, in order not to let the students of Class 9 despise him, Ren Yan still used his strong mental quality to roughly skip this part.

'I hope these little bunnies don't see it...'

Ren Yan prayed slightly in his heart.

But his expression was still determined, and even after laying two bricks, he continued to talk eloquently:

"The brick-laying step is actually very simple, as long as you stick to the perimeter of the foundation and build it in the way of brick by brick and clay, there will be no problems."

"But there are two important points to note here."

"First, when masonry, it is best to stagger some positions between the upper and lower bricks, not completely parallel, so that the stress area of the wall will be more uniform, and the impact that can be resisted will be greater."

"Second, when the wall is about to lay the foundation, the bricks in that circle must be half above the foundation and half under the foundation, and the connecting layer between the two bricks must not be level with the foundation."

"In that case, if there is some strong external force, the house will easily break apart from the middle, which is a very dangerous behavior, understand?!"

After that, Ren Yan looked at the students of Class Nine fixedly.

After the students looked at each other, they always felt that something was wrong, but they didn't have time to think about it at all, so they could only nod their heads according to Ren Yan's words.

And keep these two key points in mind.

After demonstrating some of the main knowledge points, Ren Yan stopped talking.

Instead, clay and stone bricks are quickly used to build along the ground layer.

In a short time, the walls on all four sides were the same height as the wood that had been inserted before, and everyone appeared in front of them.

On one side, there are also clear locations of doors and windows.

made netizens sigh for a while.

This teacher is really good at building brick houses!

They were still a little suspicious before, but now it seems that their pattern is still small!

After the appearance of these four walls, Ren Yan used the previous clay and some gravel to reinforce the four trees in the corners.

Let the combination of clay and gravel completely envelop the four trees.

Then some weeds were found to cover the position of the beam, which was barely used to replace the effect of the tiles.

At this point, a brick house is more or less complete.

Netizens took a look at the time, and it took more than three hours from construction to completion.

Although the size of the house looks ordinary, they can still feel the unique solidity of the brick walls.

This thing looks much sturdier than the thatched huts in front!

The students in Class 9 felt the same way.

After Ren Yan finished it, they scattered without saying a word.

They have carried out a simple move to their original thatched houses.

So that the living area has left a large area vacant.

Now that there are brick houses, who will let the thatched houses occupy this place!

If they didn't tear it down directly, it was already their greatest favor!

Back then, the main reason was that I was afraid that I would have no place to sleep at night after demolition.

After deciding on the location of the respective brick houses.

The students began to lay the foundation according to Ren Yan's example.

For a while, the whole farm seemed to be in full swing again, and it was extremely lively.

Netizens watched this scene and were also a little moved.

I began to conceive the possibility of building my own brick house in the barrage.

However, because of the reason that he could not burn bricks, he had to temporarily abandon this idea.

And a reunification has been reached, and I must ask Mr. Ren to talk about the whole process of burning bricks again!

Otherwise, wouldn't they have learned in vain to build this brick house?!

However, netizens chatted and suddenly realized a problem.

Teacher Ren said that he would teach horseback riding once, but there has been no movement until now.

And the other party has already run to the side to look at the phone...

The expression is still solemn...

You can't just forget about it!

At this moment, netizens reacted completely.

expressed their dissatisfaction in the barrage:

"@任颜, Mr. Ren, can we have some integrity!

”

"What about the good horseback riding lesson?!

！ ”

"You profiteer!"