The variables in the final stage of senior high school are much smaller than those in junior high school, and the key reason is the difficulty.
The stratification of high schools often starts from the first semester of high school. The results change in half a semester is even greater than the full three years of junior high school. Whether it is the two-level differentiation in junior high school or the third grade of junior high school, it is not worth mentioning at all in the high school stage. The core of the differentiation of the first two is the gradual increase in the difficulty of some subjects such as mathematics and physics (and not much improvement). In the first year of high school, each subject has changed its difficulty mode and directly upgraded to another dimension, rather than the expansion and extension of the difficulty of the original knowledge points.
If you fall behind in the second and third grades of junior high school, you will still have a long adaptation period and some methods will be improved. You will compete in high school to compete for your hard strength. The core reason for your backwardness is that your thinking ability is not as good as others and your difficulty cannot keep up. This is not only science subjects such as mathematics, physics, chemistry, and the difficulty of Chinese, English, and even geography and biology is almost unrecognizable.
, and the difference between in junior high school entrance examination is smaller, and the exam itself is somewhat accidental, so it is easier to improve the score. The difficulty ratio in junior high school is generally 7:2:1, mainly simple questions, accounting for 70%, while the difficulty ratio of high school is generally 5:3:2, that is, if you only know how to do simple questions and half of the medium questions. Junior high school students can get 80% of the scores, while high school students only get 65%.
After choosing a subject in the first year of high school, there will be a second wave of grade changes. This change is not due to the increase in difficulty. The difficulty of the two semesters does not change much, but the class composition changes after choosing the subject. For example, after entering the biological and chemical biology class, the grades of middle-aged students will feel that their grades have declined, especially the scores of chemical and biological scores will decrease. After students with average grades enter the liberal arts, most of the class rankings will improve significantly, especially in subjects such as history and politics (most of the students with the best grades choose science).
, and the grades in the second year of high school will not change much. Unlike junior high school, the subjects of the first year of high school to the second year of high school are not an extension of the difficulty, but rather the learning of different knowledge sections. There is no essential exercise in terms of knowledge system, such as physics from mechanics to electromagnetics , chemistry from inorganic chemistry to organic chemistry, mathematics from function to calculus, etc.
The change in grades in the second year of high school is not because of the difficulty increase, but because different students have different learning abilities for different sections of the same subject. For example, some students are at ease in mechanics, while some students prefer electromagnetics. But overall, students with higher thinking ability have relatively strong learning abilities in all sections.
The overall review of senior high school students is an upgrade application of the original knowledge level. Their grades are based on the first and second year of high school. Most students' proficiency and skills in doing questions at this stage will be improved. Each person's improvement range will be different, and their grades will fluctuate to a certain extent. If the first and second year of high school are too poor and cannot keep up, the review will easily fall behind more and it is more difficult to counterattack.
