Ⅰ.
Properties of triangles
01.
Properties of triangles⑴
02.
Properties of triangles⑵

Ⅱ.
Properties of a square
03.
parallelogram
04.
Various squares

Ⅲ.
Similarity of shapes
05.
Similarity of shapes
06.
Ratio of the lengths of line segments between parallel lines
07.
center of gravity of a triangle
08.
Utilizing similarity

Ⅳ.
Pythagorean theorem
09.
Pythagorean theorem

V.
probability
10.
Number of cases
11.
probability

1.
The optimal problem-solving textbook to reduce learning burden
It is structured to cover the essential concepts for each topic in detail and to allow sufficient practice of basic types.
By boldly omitting difficult content, questions that are rarely tested, or questions that do not fit recent test trends, we have reduced the learning burden and improved the learning achievement of students who struggle with math.

2.
Type segmentation
After covering all the easy school exam questions, we've broken them down into more specific types based on the concepts and solution methods needed to solve them, so you can learn problem-solving strategies for each type.

3.
three-dimensional learning
The difficulty of the problems is divided into two levels, A and B. By strengthening the basic problems of level A and further dividing the types of level B, three-dimensional learning is possible by level of difficulty and type.

4.
Type practical finishing
We have organized the final learning problems for each type of Stage B to help you develop problem-solving skills for each type and prepare you perfectly for real-world situations.