In a sense, Wang Houxiong is a big series. According to your version A and B, what you want to ask is the complete interpretation of synchronous textbooks (7 to 3), the complete learning plan of textbooks (3 to 7) or the complete interpretation of classes (5 to 5).

The so-called synchronous teaching AIDS are in one-to-one correspondence with the courses of textbooks, so it depends on which textbook is used in your school's mathematics, so which version you want to buy the corresponding teaching AIDS.

The reason why compulsory mathematics 3 is divided into version A and version B is because the textbook of compulsory mathematics 3 published by People's Education Society is divided into version A and version B, and the cover has two labels, A and B. So there is no need to buy both books, because the course order of the two books is somewhat different, and many contents are still the same.

In short, your textbook is version A, and the teaching assistant will find someone to teach version A; B version is used, and the teaching assistant will find someone to teach B version.