1. "Compulsory Mathematics for Senior One" and "Compulsory Mathematics for Senior Two": These two books are compulsory textbooks for senior high school mathematics issued by China's Ministry of Education, with comprehensive and systematic contents, which are suitable for middle school students.

2. Elective Mathematics in Senior High School 1 by People's Education Press and Elective Mathematics in Senior High School 2 by People's Education Press: These two books are textbooks of Elective Mathematics in Senior High School by People's Education Press, which are rich in content and focus on cultivating students' mathematical thinking ability and problem-solving ability.

3. Guide to the whole process of high school mathematics competition: This book is a textbook for high school students to participate in mathematics competitions, covering all the knowledge points of high school mathematics. The difficulty of the topic is moderate, which is suitable for students with a certain mathematical foundation to study and train in depth.

4. High school mathematics problem-solving skills and methods: This book mainly introduces some common problem-solving skills and methods in high school mathematics, and helps students improve their problem-solving ability through a large number of examples and exercises.

5. "Mind Map of Senior High School Mathematics": This book presents various knowledge points and concepts of senior high school mathematics in the form of mind map to help students clear their minds and deepen their understanding of mathematical knowledge.

The above are some math textbooks recommended for middle school students. Choosing appropriate teaching materials can help students learn and master mathematics knowledge better.