The 20 minutes passed quickly, and most people had gone through the first three pages of the handout, which showed the basic principles of building water archery, as well as a detailed analysis of the drawing process.

This circle is composed of a total of 32 lines, of which there are 21 straight lines and 11 curves, and the core of the circle is a concentrating array and a jet power core, which are superimposed.

However, there is still a long way to go after reading and painting, and depicting the circle is a very rigorous work, and sometimes an error of just one millimeter may cause the entire circle to fail.

When depicting the circle, it is necessary to pay attention not only to the length and thickness of the line segments, but also to the angle between the line segments, the depth of the strokes, and the uniformity and stability of the water element coverage, which is a special test of details.

And every formation master has experienced countless failures before he succeeds, and he doesn't know how much paper has been wasted.

"Alright, everyone, let's start building a water archery circle now." Tao Hongcheng saw that everyone was almost there, so he announced.

She wasn't worried about what would go wrong, anyway, the lethality of water archery was very limited, plus each person only had one Arctic Ice Fish egg, and the water element in it would at best wet the whole body and not cause more damage.

Because of this, Tao Hongcheng simply let everyone try, and he walked around the classroom and began to observe the construction process of each student.

Most of the students sitting in this classroom, except for Fang Yu, have some foundation, so there is no need for Tao Hongcheng to say anything, everyone squeezes the eggs of the Arctic icefish, sucks the blue ice juice into the pen, and then takes out special drawing tools such as rulers, compasses, and triangles, and begins to draw on paper.

Fang Yu was a little dumbfounded, he temporarily decided to come over to audit the "Formation Research Class", and he didn't know in advance that he would bring drawing tools such as rulers and compasses, seeing that everyone had a set of hands, only he didn't have it.

"Well, it doesn't matter if you don't have it, it's important to try." He smiled wryly and began to draw lines on the paper without the help of tools, without expecting much.

Rustling – The classroom was silent, with only the sound of pen tips rubbing against the paper, while Tao Hongcheng walked past each student with his hands behind his back, pointing out their work from time to time.

"The length of the spirit gathering line is not enough, which will cause the strength of the spiritual power to return to the strength and hinder the jetting of water arrows."

"If you draw this spiral acceleration line backwards, it will explode."

"How many times have you said it, but I still can't remember the composition of the thirteen sides?"

"You're doing a good job, and it would be even better if the angle of the hyperbola was reduced by another 2 degrees."

Tao Hongcheng couldn't help but smile on his face as he walked and watched.

When these children first entered the school, their foundations were relatively average, but everyone had a good learning attitude, and they all made a lot of progress during this time.

Thinking of this, she subconsciously glanced at Fang Yu's side, and saw that Fang Yu didn't have any rulers, compasses or other tools in his hand, so she scribbled on the paper with a pen.

Because of the distance, she didn't see the specific pattern on Fang Yu's paper, but from a distance, it looked chaotic, and it didn't look like a water arrow magic array.

Tao Hongcheng sighed in her heart, originally she thought that Fang Yu was one of the most talented freshmen this year, so she was still very happy to see Fang Yu come to her "Formation Research Class".

But now it seems that this student's learning attitude is not very correct, didn't he prepare before coming to class? You don't even have the basic drawing tools, can you draw this?

Thinking of this, Tao Hongcheng didn't even want to see Fang Yu's works.

……

Half an hour passed unconsciously, and most of the students present completed their works, and after each pair, Tao Hongcheng asked the student to come to the podium to show it.

There is a target hung on the podium, and each student touches his or her work with spiritual power, and then attacks the target with a water arrow, judging the quality of the circle according to the speed, strength, and response time of the water arrow.

Most of the students were able to successfully release a water arrow, which was about as strong as a super-sized water gun firing it, and the duration was generally about three seconds.

It would be unrealistic to expect such a circle to be used in battle, but everything has to be done gradually, and everyone is just starting to learn to draw a circle, so it's good to be able to do so.

Everyone came up one by one to demonstrate, and soon only one person was left in his seat.

"Fang Yu, haven't you finished drawing yet?" Tao Hongcheng couldn't help but ask.

"It's going to be soon, it's going to be right away." Fang Yu replied without raising his head, and he could see a layer of fine beads of sweat overflowing from his forehead, obviously painting very seriously, and he was even muttering something in his mouth.

Seeing this scene, Tao Hongcheng couldn't urge him anymore, but he felt a little sorry in his heart.

This freshman is said to have the blood of the dragon and is the best among this year's freshmen, but apparently he doesn't have much talent in the formation, and his drawing is slow and poor.

"Maybe he won't come back to this class in the future." Tao Hongcheng thought so in his heart.

"Teacher, I'm done." Seeing Fang Yu let out a long breath, he stood up from his seat, and reached out to wipe the beads of sweat on his head.

Although she didn't think he could succeed, Tao Hongcheng didn't hurt the student's self-esteem too much, so she could only say: "Then please bring your work to the podium and demonstrate it." ”

"Okay." Fang Yu nodded, and walked to the podium with the work.

As he gradually walked in, Tao Hongcheng slowly saw the works he painted on paper clearly, and the expression on his face suddenly became strange.

Fang Yu was about to input spiritual power into his work, when he heard Tao Hongcheng say behind him: "Wait a minute, show me your work." ”

"Oh." Fang Yu didn't think much about it, and handed over the paper in his hand.

"This is your work?" Tao Hongcheng took the piece of paper, the expression on his face was first disappointed, then gradually turned to anger, and finally turned into sarcasm: "You have been drawing over there for so long, and you have drawn such a thing?" ”

"yes, I'm ......"

However, before he finished speaking, he was interrupted by Tao Hongcheng: "I don't think you should come to the formation research class, my course is not suitable for you, I recommend you to go to the art department, they should be more interested in you." ”

While speaking, Tao Hongcheng erected Fang Yu's work and showed it to everyone.

There was a burst of laughter all around, and I saw that on his piece of paper, there was a portrait of a pleasant goat.