Go back to the textbook and read and think about the knowledge points with functions. Some knowledge structures in the reference books are also summarized, but I suggest that it is more effective to review the books and summarize them yourself. The so-called function summary refers to the structural characteristics, images, domain, value, parity, monotonicity, parameter meaning, function movement and so on of special functions such as elementary function, quadratic function, exponential function, power function, logarithmic function and tick function (also known as Nike function). It really takes time.
It's time for the first round of review in senior one. Many students haven't realized the importance of the first round. In the first round of lectures, the teacher will speak very carefully and slowly (compared with the later review), and will involve various small knowledge points. Most of them are special functions that need to be remembered, because we have been learning functions since junior high school. Some teachers think that primary and secondary functions don't need to be discussed in detail, but you should know that you are scum, and of course you should study them carefully. Listen carefully!
I think most of my math breakthroughs in senior three come from attending classes and doing problems. The math class in New Oriental Zhou Shuai is really good. You can look at the suggestions. It seems that I have to plan my time well. Anyway, don't look unhappy. If you think so, math is not difficult, but you don't understand it. We are the flowers of the motherland in 2 1 century. If you want to know, there are many ways, which are difficult for us?
Many times, if you only read a book, it may be because the author jumped somewhere to think and you can't keep up. One trick of learning mathematics is that you can get several internationally famous textbooks at the same time and compare them with each other, or read one book on the same subject and then read another, skipping the familiar content. If you don't understand, stop thinking or practicing, or if you don't understand, go back from the understandable part. When you read more, you will find that something appears in many places, and your understanding of it will deepen.