Classrooms in prestigious schools are difficult. According to the inquiry of official website, the State Education Bureau, the famous school classroom is a way of learning to deeply explore the concepts and methods in mathematics, which requires students to master certain basic knowledge of mathematics and have strong mathematical reasoning and analysis ability. Classrooms in Famous Schools is a book published by New Century Publishing House, a southern publishing media. The author is Zhang Dan, Hubei Century Huazhang Culture Communication Company.