Peiyou**********

The content of this book is organized very systematically and scientifically. It classifies and organizes the knowledge of seventh-grade mathematics. The examples are very detailed, and there are also questions that draw inferences from one example. It is very suitable for students to lay a solid foundation and improve their problem-solving abilities. It reminds me of another similar book "Mathematical Thinking Training". Both books focus on the explanation and application of knowledge points.