Knowing the secrets of type creation makes even top-tier mathematics a breeze.

"Miracle Problem Solving" is an advanced textbook for elementary school students who are just beginning to learn advanced mathematics.
Elementary school students have not yet fully developed logical and systematic thinking about abstract concepts, so it is difficult for them to directly apply and solve problems with changing conditions or transformed forms by simply solving one or two top-level representative examples.
The best way to learn mathematics for elementary school students is to understand it by comparing the methods used in the problem solving process as conditions change and as concepts are added.
You can learn how to think logically by exploring different solution strategies depending on the problem situation.

"Miracle Problem Solving" is designed to help students learn core problem-solving techniques for each type by carefully selecting the top math problems of each semester and separating and reorganizing the problems according to the principles of the questions, such as changes in expression, changes in conditions, and mixing (adding) concepts.
You can improve your mathematical thinking and problem-solving skills by repeatedly practicing how your problem-solving strategies change as the problems change slightly.
In particular, EBS Elementary School provides a commentary lecture titled 'Jung Yu-bin's Miracle Problem Solving Method', so that even students who struggle with math can challenge themselves with top-level math with detailed and friendly explanations.