Let you teach, you play games with the worst class?

'Is this the courage of young people? '

I don't know how many times this is, Ren Yan really wants to cover her speechless face with her hands again.

But think about it, let it go.

Instead, he began to warn his students not to make such scary moves.

After a brief "exhortation", Ren Yan brought the topic back to the sunken ship.

And a feasible execution plan is given:

"Remember, you will want to go deep into the bottom of the sea later."

"Not only to warm up, but also to use the equipment for deep diving."

"Without this set of equipment, ordinary people would be risking their lives if they dive four or five meters, understand?"

"But teacher, we don't know how to dive deep..." Qing Dong, who put on his clothes again and regained his confidence to a certain extent, said weakly.

Ren Yan immediately rolled her eyes and said, "Can't you learn something you don't know?"

"And it's not that difficult."

After finishing speaking, Ren Yan went to Class No. [-] again, and came down with a package after a while.

When Ren Yan opened the package, everyone in Class Nine was stunned.

Fins, a breathing mask, a full-body swimsuit that looks quite thick, plus an oxygen tank marked 2L.

This set of equipment left everyone in Class Nine dumbfounded.

When did my teacher buy these things?

As for Ren Yan, after taking out her equipment, she immediately waved her hand and said proudly:

"Come on, let's learn to dive today!"

"If you want to investigate the seabed, you must start with deep diving!"

......

deep dive.

An advanced stance for swimming.

It is often regarded as one of the must-learn skills by some swimming lovers.

At its core is the depth of the dive.

Some people who have experienced professional training can even dive to a depth of 500 meters to experience the limit of the human body.

But Ren Yan never planned to teach his students that way.

Just take a look at the bottom of the sea, there is a depth of 60 meters, which is almost the same.

Of course, the most important thing is that even if she dives 500 meters, Ren Yan feels that she will not be able to do it even if she knows about [-]% of the skills.

This thing requires more than skills, more importantly, talent.

A talent that can compress one's own lungs infinitely.

So far, as far as Ren Yan knows, the only people who can achieve this level are those practitioners who make a living by doing so.

For ordinary people, the limit distance seems to be more than 200 meters.

"Okay, all of them are there, look up to me!"

To a certain extent, Ren Yan, who avoided the students putting on the deep diving equipment, stood in front of her own students again and started explaining about deep diving.

"Deep diving, in fact, is not fundamentally different from your usual treading water."

"It's just that the surface of the sea is replaced by the sea, and the techniques used are basically the same."

"It might even be easier, because this time you'll have something like flippers that can provide a powerful boost."

"The only thing to pay attention to is only three points."

"The first point is the wearing of the equipment."

"The exposed parts of the wrists and ankles must be as close to your skin as possible."

"The second is the fixing of the fins. If this thing really falls off on the bottom of the sea and cannot be rescued, then the other flipper must also be removed."

"Otherwise, it is very likely that your body will be out of balance, and some unnecessary accidents will occur."

"However, the above two are considered trivial."

"The most important thing is the choice of oxygen tanks and masks."

"Oxygen tanks for deep diving are generally between 0.6-60l, and the material is usually made of lighter aluminum."

"But even if they are made of aluminum, there will be a big gap in their overall weight. This weight will bring different difficulties to your infiltration."

"So, be sure to choose the oxygen tank that best suits your physical condition."

"Don't think that with a large capacity, you can stay in the sea for a longer time. This kind of thinking is very dangerous."

"I don't bother to talk to you about the truth that I can't chew too much."

"As for the best position of the oxygen tank, just like me, it's good to carry it behind your back."

"Use the inspiratory tube on the mask and connect the oxygen tank to achieve the purpose of self-breathing. Similarly, the mouth inhales and the nose exhales."

"If the suction pipe breaks in the middle, you have to complete the ascent as soon as possible and replace it with a new suction pipe."

After all, Ren Yan showed the real thing in front of everyone in class nine.

The drone also faithfully synchronized this scene to the live broadcast.

For a while, netizens even missed it a little bit.

They have all forgotten how long the teacher has not lectured like this.

"The second point is to dive."

"There are two main ways. The first is to lift your hands up and use your own weight to naturally dive to the bottom of the water."

"This is better than safety, but the efficiency will be relatively low."

"As for the second method, it is to plunge headlong into the sea, work in reverse by treading water, and completely send your body to the bottom of the sea."

"This kind is fast, but requires relatively high skills."

"If you can tread water proficiently, you can try it."

"The last difficulty is the most important difficulty."

"To overcome my fear of the deep sea."

"In the deep sea, you will experience a sense of claustrophobia. This sense of claustrophobia will make your whole body feel uncomfortable, and even stiff."

"These are normal physiological responses of living things to danger, just like animals playing dead."

"But if this is really the case at the bottom of the sea, then you will usher in real death."

"So for this, what you have to do is to adapt, from diving to deep adaptation, step by step, to overcome the psychological fear of the ocean."

After saying this, Ren Yan pointed to the boat:

"I've said all that needs to be said, now you go to the warehouse on the ship to find your deep diving equipment and follow me for a practical exercise."

As soon as the words fell, everyone in Class Nine was stunned for a moment, and then Class Nine rushed up like the wind, and found the deep diving equipment hidden deeply by his teacher in the warehouse.

Although they don't know how much their unlucky teachers know how to buy these things.

But they know where the usual teachers spend their class fees.

It's no wonder that the other party's class fee always starts at tens of thousands. It depends on the quality of the deep diving equipment, and it is also known that the price is not cheap.

It was different from other students who happily chose the equipment suitable for their body shape and ran to this strange island again.

Ah Wei looked at the equipment in his hand, and there was only one thought left in his mind.

"Do I have to talk to my teacher about it..."

He doesn't mind buying things, but don't you have to talk to him about the type of goods purchased and the amount spent...

Otherwise, how will I keep accounts in the future? !

......

He ignored the entanglement in Ah Wei's heart.

After confirming that there is no major problem with the island, my teacher is going to take the students to dive again.

Everyone in class nine gathered on this small island.

In an instant, the small island was in danger of capsizing.

In the end, Ren Yan had no choice but to let everyone in Class Nine practice in batches.

After the first batch of students put on the equipment, Ren Yan immediately jumped into the sea, followed by the students.

After checking that there was nothing wrong with the equipment, Ren Yan asked the students to snorkel and observe first, and then plunged into the seawater by herself.

Only the Class [-] people were left staring at the sea water, and after a while, they snorkeled helplessly to observe.

We are all equipped, and this is the result?

The students are slightly dissatisfied...

But looking at them, I feel that it is a bit beneficial not to dive deep for the first time.

Because not long after their teacher dived in, they saw a group of fish swimming past their teacher.

Although it didn't seem to be dangerous, they still felt that this scene was an accident, and if it wasn't handled well, an accident might happen.

It wasn't until they saw an octopus slapping their teacher's mask that they were sure...

What a surprise!

Under normal circumstances, how could there be an octopus sticking to the face output!

Fortunately, this thing is not big, otherwise it would definitely be enough for my teacher to drink a pot!

When they thought their teacher would be in a hurry, Ren Yan tore off the octopus calmly and threw it to the other side.

The octopus immediately kicked its legs and disappeared.

Immediately, Ren Yan went around a few more times, and after successfully diving into the bottom of the sea, she began to float towards the surface of the sea.

Not long after, he jumped out of the water again with his head raised.

Everyone in class nine immediately gathered around, intending to listen to their feelings.

And Ren Yan just waved his hand, saying that there is no problem, as long as they follow what they said and did just now, and complete the infiltration step by step, there will be no problem.

And because the depth of the ocean here is relatively shallow, the lack of light that Ren Yan is most worried about is not very serious.

At least after going deep into the seabed, the surroundings are still faintly visible.

It is very different from the claustrophobic environment of the real deep sea.

Theoretically speaking, there is no problem for our own students.

After saying this, Ren Yan took off her mask and wiped her face, adding: "Oh, that's right."

"There is one more thing you should pay attention to."

"The movement of deep diving should be as gentle as possible."

"Creatures in the sea are more vigilant. If they are startled, they will probably attack."

"Just like the octopus I met just now."

"If you don't want to be ridden in the face by an octopus, you have to put away your restless thoughts and treat yourself like a big fish."

"That way, it won't be a big problem."

"If you really encounter dangerous giant marine life, the oxygen cylinder behind you is a small bomb, which may save you at a critical moment."

"At that time, remember to use it."

"However, this sea area is relatively safe, and there are no large marine life."

Saying that, Ren Yan showed a harmless smile.

It made everyone in Class Nine tense for no reason.