Develop the habit of focusing on studying for 20 minutes at a time by engaging in a variety of learning activities with your child, from reading and writing to studying specific subjects.
In child education, quality is more important than quantity.
Any parent, any child can do it.
If you know the correct and proper method, you can maximize the results even in a short period of time.
If your child can focus and concentrate for the first 20 minutes, he or she will be able to gain the concentration and self-control to study on his or her own for 2-3 hours afterwards.

--- p.8 From “Prologue: 20 minutes with parents can change a child’s future”

Elementary school students really need to be encouraged and respected for even the smallest things they do well.
If you think, 'It's natural for my child to solve the workbook that the kid next door is solving. My child goes to the same academy that everyone else goes to, so what's the point of that?', then in reality, there's not much to praise or encourage elementary school students for.
From now on, please look at each and every effort your child makes with great care.
If you study for 10 minutes today, you can consider that as a step forward.
I studied for 10 minutes today, so I'll work hard tomorrow too. Please encourage me and give me encouragement.

--- p.32 From “Chapter 1: Lifelong study skills are determined by 20 minutes of elementary school”

Many parents expect that if their children read a lot of books, they will automatically do well in school.
Is that really true? Eugene read 6,000 books in fourth grade, but he didn't really understand the content of his social studies textbook.
Just because you read a lot of books doesn't mean you automatically know the content. (Omitted) When a child who reads a lot begins to study seriously, he or she will have a significant advantage over a child who doesn't read.
However, if you vaguely expect that you will naturally do well in your studies because you have read a lot of books, that is overly optimistic.
To do well in your studies, you must study consistently.

--- p.80 From “Chapter 3: 20-Minute Reading Method to Improve Literacy”

If you want to teach writing, teach speaking first.
Speech and writing have the same roots.
Teaching students to speak logically is the beginning of writing education.
Since speaking is a habit, it is good to listen carefully to what your child says and give warm feedback.
If you consistently guide them, you will eventually be able to persuade anyone, either verbally or in writing.
You can raise your child to be an invincible person who is good at both writing and debating.
Of course, the same goes for life essays and book reviews.

--- p.123 From Chapter 4, Writing Easily from Short to Long Texts

Some children read the same text for a long time, while others read it quickly.
The more unfamiliar vocabulary there is in a text, the slower your reading speed will be.
If your reading speed is slow, you won't have enough time to solve the problems, and if you don't have enough time, you won't get a good score.
Conversely, if you read quickly but skim the material, you will not get a good score.
To maximize your reading comprehension, it is important to consistently practice reading accurately and quickly.
Since reading speed increases the more you read, elementary school students should focus on accurately grasping and understanding the meaning.

--- p.160 From “Chapter 5: 20-Minute Korean Study to Accurately Understand the Context”

In mathematics, nothing should be missed or overlooked.
If you don't know even one area or part well at the basic level and just skim over it, you won't be able to solve problems that deepen the basic problem.
Even if you get lucky and get one or two questions right, more advanced questions will come out next time.
I still can't solve it.
If this continues, the child will eventually give up on math.

--- p.219 From “Chapter 7: 20 Minutes of Math Study to Improve Your Skills Every Day”

Even as early as the fourth grade, when puberty begins, the presence of friends becomes incredibly important to children.
In the past, we would meet up with friends in person, play, talk, and chat to build relationships, but now we chat through SNS messengers and use the Internet to play.
The world of smartphones is another school and playground for children.
Of course, just like in the real world, fights happen, conflicts arise, violence and bullying exist.
If parents don't educate and guide their children about this in advance, they can't even guarantee what kind of experience they will have.
--- p.285 From “Chapter 10: Raising a Child Who Can Win Over Smartphones”

Play has principles that everyone can agree on, and when everyone participating in the play follows these principles, the game proceeds smoothly.
Children who have played with friends frequently since childhood have good social skills and good interpersonal relationships because they are accustomed to acknowledging and following these rules and regulations.
Children naturally go through the socialization process as they repeatedly experience voluntarily following rules and sometimes making sacrifices or concessions to reach agreements in order to have fun.

--- p.305 From “Chapter 11: Building Healthy Relationships Through Play”