TOP 1: From Textbooks to Olympiad Mathematics
TOP2: The second textbook of primary school mathematics
TOP3: "Draw inferences from others"
TOP4: Primary School Olympiad Reading Materials
1, competition mathematics textbook for senior four schools, East China Normal University Press.
Gaosi itself is a very powerful educational institution. This set of textbooks is really a "textbook". My family bought the whole set. Later, because of the high level of children, this set of books seemed too simple, and later it was given to others. This set of books is in color pages and is very suitable for beginners.
In terms of difficulty, I personally feel that it is lower than analogy, but if that's all, I don't recommend it particularly. If you have heard of a popular learning+APP-"Lele Classroom" (now called "daily exercise", you need to pay), then you can completely consider the combination of this textbook and APP.
2. Olympic Mathematics Course, East China Normal University Press
This set of books is definitely a classic Olympic mathematics textbook. Each grade is also divided into three books: Olympic Mathematics course (textbook), Olympic Mathematics course learning manual (exercise) and Olympic Mathematics course ability test (special test), which my children used for three or four years. It is a new version at present. This version can scan the QR code next to the code topic to watch the example explanation.
It is a little difficult for most beginners to learn this book by themselves, but it is recommended if parents have good ability and children have a good foundation. After all, this book is very systematic and comprehensive, and many institutions without their own textbooks will choose this book as a textbook.