1.
one decimal place
1.
Minor appearance
2.
Reading prime numbers
3.
Meaning of 0.1
4.
From 0.1 to 1
5.
1.△
6.
Prime numbers and natural numbers
7.
When there are a lot of 0.1s
8.
When there are multiple 0.△
Unit conclusion
Confirm in descriptive form
Take a break

2.
two decimal places
1.
Distinction of numbers
2.
0.01
3.
Two-digit decimal number as a picture
4.
Two decimal places and a number line
5.
When there are multiple 0.01s
6.
10 times, 100 times a two-digit decimal number
Unit conclusion
Confirm in descriptive form
Take a break

3.
three decimal places
1.
Divide 1 equally by 1000
2.
Three-digit decimal number as a picture
3.
Three decimal places and a number line
4.
When there are multiple 0.001s
5.
Comparison of prime numbers
6.
decimal places
7.
Moving the decimal point
Unit conclusion
Confirm in descriptive form
Take a break
One more time! Check

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*People who solve it well when it comes out as a formula, but get lost when it comes out as a sentence

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We are solving the concept of prime numbers in the most mathematical way possible.

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A math book with a pastel-toned layout that resembles a fairy tale has been published, unfolding mathematical concepts through illustrations.
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1.
Visualize it so you can remember it for a long time!
Mathematics is a discipline of promise.
You need to study with a focus on concepts and processes, not simple calculations.
So, we need to know the definition precisely, but the problem is that mathematics is not very good at explaining definitions.
'Justice' is not something that falls from the sky, but there are inevitable reasons why it must be used that way.
To help you remember these definitions for a long time, we have included them in the book as illustrations.
We explain the meaning with pictures so that it is not confusing, and we train by practicing with problems enough so that you can completely internalize it.


2.
Intuition comes first, logic comes second!
Before developing the logical content, we start with an intuitive understanding.
After learning how to distinguish what a prime number looks like, we move on to unraveling the meaning of prime numbers.
Since prime numbers are numbers, they have a size. The size is shown first in a picture, and the concept is organized with logical explanations, such as where they are located on a number line, so mathematical expressions and conventions can be naturally accepted.


3.
Approach it in many ways!
Starting with the meaning of 0.1, we explain decimals in various ways, such as using pictures, representing decimals with number lines, and representing numbers using 0.1.
Since prime numbers are numbers in the decimal number system, just like natural numbers, they have many similarities with natural numbers.
For things with properties similar to natural numbers, the content is explained by drawing from natural numbers, and is presented in a way that is truly helpful for learning, without being bound by existing explanation methods.

4.
Free video lectures so you can study on your own!
All concept explanations are accompanied by video lectures.
Additionally, for problem sections where additional explanation would be helpful, we've included problem-solving lectures in QR codes.
You can view the lecture immediately by scanning the QR code without separate registration, and you can check out more reference materials by visiting www.mathbus.co.kr.
You can enjoy studying with the cheerful, refreshing, and exhilarating lectures of a former EBS teacher.