Senior high school mathematics is the key period of senior one and senior two. Generally speaking, as long as the classroom knowledge is digested and absorbed, and the synchronous exercise books and classroom exercises are completed, there is no need to do many extracurricular problems. The key is to understand and master the core knowledge.
High school students have advantages in mathematics and science, strong mathematical environment and more rigorous logical thinking ability.
The third year of high school is about sea tactics. If the previous foundation is not very solid, you can make up for it by reviewing and practicing in senior three.
I hope I can help you ~