1.
rain
1.
The appearance of rain
2.
How to compare two numbers
3.
Division Comparison and Ratio
4.
Comparative quantity and reference quantity
5.
Several ways to read rain
Unit conclusion
Confirm in descriptive form
Take a break

2.
ratio
1.
Rain and ratio
2.
Expression of ratio
3.
When a ratio is used - (1) Thickness of the juice
4.
When ratios are used - (2) Population density
5.
When ratio is used - (3) Speed
Unit conclusion
Confirm in descriptive form
Take a break

3.
percentage
1.
Meaning of percentage
2.
ratios and percentages
3.
When percentages are used
4.
Boldness using percentages
5.
Discount rate
6.
Voting percentage and ratio graph
7.
Displaying bar graphs and pie graphs
Unit conclusion
Confirm in descriptive form
Take a break

Answer and explanation

Understand ratios, proportions, and percentages in one context!
It may be confusing if you memorize it piecemeal, but this book covers the concepts contained in the rain, right down to percentages!
A book that first explains real-life situations as concepts!
A must-have book before starting middle school math!

1.
Visualize it so you can remember it for a long time!
Even if you fully understand the concept, it is also important to remember the concept well.
That way, when you encounter a problem, you can solve it quickly.
This book not only contains concepts of ratio, proportion, and percentage, but also visualizes real-life situations where they are used to make them easy to understand.
Because it is an image, it is easy to see and can be remembered for a long time.

2.
Expand your thinking beyond the confines of textbooks!
Currently, the elementary mathematics curriculum covers cases where ratios are applied in other subjects and real life, but it is limited to simply expressing ratios numerically.
However, sometimes ratios need to be expressed with units as it is important to understand their meaning.
So, this book presents units and terminology in a natural way so that they are not burdensome and are easy to get used to.

Additionally, we have also included a ratio graph using percentages to help students understand the connection and feel interested.

3.
Free video lectures so you can study on your own!
We provide video lectures for all concept explanations without exception.
We've also included a QR code with a solution lecture for some problems that require additional explanation.
You can view the lecture immediately by scanning the QR code without a separate registration, and you can use more materials by signing up for Mathbus (www.mathbus.co.kr).
You can enjoy studying with the cheerful, refreshing, and exhilarating lectures of a former EBS teacher.


★★★ Great for students like this!
*Friends who are good at finding answers, but don't know the concept when asked about it
*Friends with little interest in math
*Friends who want to know how math is used in real life

★★★ A book that proves that math books can be pretty too!!!
We designed the concept content as illustrations and escaped the rigidity of math workbooks with a pastel-toned layout.
We wanted to create a fun learning atmosphere with pretty math books.