Generally speaking, from primary school to middle school, what you learn is basic knowledge, and there is no problem.
Of course, relatively speaking, it is a little more difficult to analyze the relationship between geometry in senior two.
For the textbook itself, the second year of high school is naturally more difficult. After all, part of the content is based on the first year of high school.
For children, senior one is very difficult. As long as you can adapt to the study and life of senior three as soon as possible and develop good study and life habits, the content of senior two is self-evident.