Different ideas, the Soviet version is closer to students' autonomy, that is, it comes from textbooks but is higher than textbook ability. After all, students all over the country are different in intelligence, so they tend to be simple.

"Full interpretation of teaching materials" is a synchronous teaching aid, which means that there is a one-to-one correspondence between the teaching materials used in your school.

Different regions or different schools use different versions of textbooks. Jiangsu Education Edition, People's Education Edition A and People's Education Edition B are three different textbooks. You should choose which version of the textbook you use to fully interpret it. Otherwise, it may not match your textbook.

However, it should be noted that there are some versions of mathematics that have been selected by their family, and there are also general versions, which are the main knowledge points of textbooks in various places.