Each chapter and section has its own emphasis, and from the perspective of college entrance examination, function is undoubtedly the most important. Every chapter is closely related to function, so function is the undisputed focus. Then there is another important point that is often overlooked: assembly. The party was put in high school from the beginning because it was very important. This is a change of thinking mode, and every picture in the future can also involve the concept and application of set. Then trigonometric function and sequence, with high zero activity, are considered as two difficult chapters. But the contents of these two parts are very regular. As long as you master the rules, most problems will be solved. As for vectors, in some places, the solid geometry part of textbooks is a vector version, and some are conventional methods. I don't know which part the landlord belongs to Vector is a simple chapter, but it is a new way of thinking, and it will take some time to accept this way of thinking.

Senior one mathematics mainly talks about these, and every chapter can't be underestimated. Some are the focus of the college entrance examination, and some are the chapters that lay the foundation for the following chapters. I won't say much about the content of senior two and senior three. Because as long as senior one learns mathematics well and lays a solid foundation, senior high school mathematics is actually not difficult.

The difficulty of high school mathematics is the way of thinking and method.