School is different.

For example, we take 2-3.

; 4-4; 4-5; 2-2; What other conic curves are there? The teacher talked about them, except geometric proof. However, the elective content will not be completely finished, and the teacher will choose the key content to speak. Personally, I think we can do more parametric equations and geometric proofs, and fill in the blanks in the college entrance examination. Of course, if the junior high school foundation is good, it is still recommended to do geometric proof. It will basically win in 1 minute, and there is no error-prone parameter equation. The probability is 2-3, that is, the concept and binomial distribution, hypergeometric distribution and binomial theorem are more important; 2-2 is a derivative and an integral. It is enough to know how to do the integral, and pay more attention to the derivative, which is really useful. Needless to say, conic curve is the essence of high school geometry; Just remember a few inequalities ... that's about it. Just finished the college entrance examination. This is my own opinion. I hope it can help you a little.