Function, trigonometric function. Binary quadratic equation, factorization common factor, etc. I am now a senior one student, and the entrance examination pays special attention to computing ability! Especially in chemistry, the calculation of molar number is very annoying. Therefore, the foundation of junior high school should be solid, not only solid, but also in-depth exploration! Otherwise it will be difficult to be a senior. One, two, geometric function is a compulsory course in senior one mathematics learning.

Buy a tutorial book on Venus and preview it first. Preview is very important. In addition, it is recommended to practice English more. High school English is not simple, especially the listening and speaking test, I can't understand it!

Have a good preview, son. I got 680 points in the senior high school entrance examination, but high school is still very difficult.