It's a bit level, Tang Qianqian!

Without being urged by others, the invigilator continued to look at the next question.

This is a geometry problem that requires the area of the shaded part of the graph.

This kind of problem often appears in the Primary School Math Olympiad.

The questions in the after-class practice questions are all spliced together from the simplest basic figures.

However, in the field of Olympiad mathematics, the graphs given are often so strange that they cannot be calculated by simple formulas.

To solve this kind of problem, most of them are to make several auxiliary lines, then calculate them in blocks, and finally add them up.

The invigilator recalled the basic idea of doing this kind of question.

As a math teacher himself, he still has a lot of research on these.

He glanced at Tang Qianqian's drawings and did not make auxiliary lines.

There's probably no way to solve that, right?

Wait... What is it?

He looked at it, Tang Qianqian didn't seem to be without a line, she drew a... X-axis and y-axis?

Isn't this a planar Cartesian coordinate system?

What is this for?

Then he saw the process on the side.

This time, he had an incredulous expression.

This process...?

Is she integrating? Definite integrals?

Tang Qianqian's solution is actually to calculate definite integrals?!

Since I hadn't studied math outside of elementary school for many years, the invigilator was a little rusty to see these things.

But he's definitely a serious math graduate, and there's no way he doesn't know this thing.

It doesn't make sense, that symbol that looks like a curved earthworm is an integral symbol!

He felt a little unreal.

The appearance of integral symbols on the elementary school test paper makes anyone who looks at it feel weird, right?!

When students first came into contact with points, they had to be in high school, right?

What's going on?

The invigilator recalled some knowledge points and formulas of definite integrals, and after confirming that he recalled them, he began to watch Tang Qianqian's process.

The line in the graph is a special curve, how can she see it?

But soon he found out that Tang Qianqian, in the process, actually wrote the analytic formula of this special curve.

The invigilator did the math on paper.

Really!

This is a solution that he has never thought of.

In other words, not all problems can be solved with this bizarre idea, but this problem can be used!

Tang Qianqian used that!

What about the later calculations...?

Exactly.

The invigilator did not give up on solving it again with the conventional method, and the answer was compared with Tang Qianqian's solution.

See eye to eye.

Outrageous!

This problem is the fastest to do a good image with definite integrals!

Could it be that she happened to have done this problem somewhere else, and she forcibly memorized the solution of the senior class, and then wrote it down perfectly in the exam room?

Do you believe it yourself?

The invigilator asked herself.

Forcing himself to give up thinking, the invigilator continued to look down.

Question 3 is correct, and the conventional solution is used.

The fourth big question, correct, is an unconventional solution, and this time it is a method that will only be exposed to in junior high school.

The last 5th and 6th courses are also correct.

You can find a pattern.

That is, when Tang Qianqian chooses the solution method, the only basis for selection is - the least number of steps.

I don't care at all what stage of the method I use.

Is she really an elementary school student...

Could it be that our school is going to produce a really good seedling this time?!

The invigilator looked up, trying to find Xiaoqian's trace.

But it was clear that she was gone.

The invigilator glanced at the time.

There is still half an hour left before the end of the exam.

Wait a minute?!

Wrong wrong.

The invigilator suddenly noticed a problem.

A very important question.

When did Tang Qianqian submit her papers?

He recalled.

Be... Half an hour ago?

In other words, it took half an hour to help her check the next few big questions.

Although there is a difference between checking the calculation and doing it yourself.

Then even if you have completed these 6 questions in 20 minutes!

So how long did Tang Qianqian take?

The answer is: half an hour.

This time the invigilator was clear.

The total time of the exam is one and a half hours, and I checked it for half an hour, and now there is still half an hour left before the end of the exam, so Tang Qianqian only took half an hour.

Slower than yourself?

! There are also choice and fill-in-the-blank questions at the front of this paper!

I don't believe that the big questions in her back can be done like this, and the front multiple-choice questions and fill-in-the-blank questions can still be written blindly.

I don't believe it if I die!

The invigilator is almost a little schizophrenic, and he actually has a tendency to quarrel with himself.

In 30 minutes, a whole test paper was handed in.

Most of them are all pairs.

There are still a lot of advanced methods such as "integral" and "derivative".

...

The invigilator was silent.

It seems.." The term "good seedling" is a bit conservative.

Because what happened just now was too "magical", the invigilator delayed for a long time to sort out the entire chain of events.

In the end, a conclusion was drawn:

This little-known primary school is finally about to come out of a "demonic" little genius.

The invigilator takes a deep breath.

As a math teacher, his favorite thing is the "little genius" type of high-IQ kids.

This is a liking from the inside out, which is deeply engraved in the identity card of "math teacher".

He is a little sorry that he is not such a "little genius" teacher.

"Hey—"

He sighed, sorted out his emotions a little, and put the "wonderful" math test paper in the test paper bag.

On the way to re-stuff the test paper, he accidentally touched something and landed on the ground.

The invigilator bent over to pick it up.

What fell to the ground was a piece of used scratch paper, or a large drawing.

Tang Qianqian just painted it.

The invigilator suddenly felt that this work, which he thought was "sparse" at first, looked particularly pleasing to the eye and had a special artistic atmosphere.

He picked up the scratch paper.

On the way to get up, his body suddenly froze.

Draw...

When did you draw it...?

How long does it take to draw the dense lines on this scratch paper...?

So?

Once again, the invigilator was in a state of downtime.

......

On Saturday evening, all the test papers of the mathematics competition were corrected.

The results of the on-campus selection of this competition were very unexpected.

There are nearly 40 test papers, and there are actually 4 perfect score test papers!

It's like never before!

In the past few years, there has been a maximum of one perfect score for each on-campus selection, and there are very few points above 95.

You must know that the difficulty of each question is very close.

This shows that there are more outstanding students in this year's competition.

But it also brings up a problem that has never been seen before:

Which three will you choose to compete in the district?

In the past, it was enough to directly select the top three according to the results.

But this time, four perfect scores, it's bound to eliminate one person, right?

They are all children with perfect scores, who wants to be eliminated?

The head teacher in charge of the selection of the school felt a rare sense of entanglement.

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I'm really an all-round companion to provide you with the fastest, update, Chapter 246 Where did the demon come from? Free to read.