I.
Mistakes and their calculations
01 Square roots and real numbers
02 Calculating expressions including radicals

Ⅱ.
Multiplication and factorization of polynomials
03 Multiplication of polynomials and multiplication formulas
04 Factorization

Ⅲ.
Quadratic equation
05 Quadratic equation
06 Root Formula

Ⅳ.
Quadratic function
07 Quadratic Functions and Graphs
08 Graph of the quadratic function y=ax^2+bx+c

[ Core Concepts + 100-Point Notes ]
- Includes essential content for a complete understanding of the unit.
- Includes examples, references, etc. to help you understand the concept.
- Presenting the teacher's 100-point know-how in a diagrammatic and structured manner
- Link problem numbers to 100-point notes to help students understand concepts through problems.

[Questions that will definitely appear on the exam]
- Includes essential questions to develop problem-solving skills in exams
- Includes representative questions from excellent middle schools in each school district, carefully selected for each concept.
- The questions are structured so that you can basically get 80 points in the actual exam.

[ Problems for Grade A ]
- Includes various types of problems that can trip up Grade A students
- Includes predictive questions on the new trends of middle schools in excellent school districts
- Includes problems that students are likely to make mistakes in during actual exams.
- Includes descriptive questions to help develop logical thinking.
- Strengthen your ability to solve difficult problems by including challenging problems with a correct answer rate of less than 50%.

[Comprehensive Thinking Challenge Problem]
- Includes cross-curricular integration problems and real-life problems from middle schools in excellent school districts.
- Problems are structured to develop comprehensive thinking and application skills.
- It is designed to help you achieve an A grade by containing difficult, descriptive questions with incomparable discrimination compared to other problem books.

[ Preview of Academic Achievement Assessment ]
- Thoroughly analyzed the questions from the National Academic Achievement Test for the first year of high school and included representative questions that frequently appear in the relevant unit.
- Includes trends and strategies for each type of question to help you develop problem-solving skills.

[ Answer and Explanation ]
- A real commentary that you can learn just by reading
- Includes clear and detailed explanations so that problem-solving methods can be understood just by reading the explanations.
- For challenging problems, step-by-step solution strategies are presented, and explanations are provided so that students can understand what methods and thought processes are required to solve the problem.
- Blacklabel special lectures on essential concepts, essential principles, solution clues, solution corrections, and explanations of extracurricular knowledge are provided so that students can learn by reading the explanations alone without having to open other books.