But these contents will only be told to those students with excellent grades.
For example, in our school, only the top 30 students can take that kind of class. I can't give up even though we are all in key classes.
In addition, I will give you a very practical grading course in Amway. Gaotu class 19 yuan famous teacher course, with 24 classes in four subjects: Chinese, Mathematics and English. Teachers can talk a lot about problem-solving ideas and big moves, which is much better than learning by groping. There are classes in senior one, senior two and senior three, and the discount link is put below ~
1. Apollonius circle-circle definition for short: Given two points A and B on a plane, the locus of all points P that satisfy PA/PB=k and are not equal to 1 is the connected diameter of two points that divide and divide the line segment AB at a fixed ratio of m: n. ..
The specific content and usage should be put in the title.
This circle can be used in multiple-choice questions with good results.
2. The artifact in the derivative problem-the scaling method is to transform an indefinite function into a definite function, so as to find the maximum value.
Teachers who usually use it will say that this method is not within the scope. The application in general big questions is not given points, and can only be used in small questions. For example, junior high school knowledge can be written in the senior high school entrance examination, but using some senior high school methods will make the calculation easier. For example, when learning similarity, the teacher will expand the projective theorem. And various calculation formulas. These things can help you analyze problems. For example, when the teacher talks about kinetic energy and potential energy, expanding the calculation formula about them can help you remember the factors that affect them clearly. There are also some teachers' experience in doing problems. And the exam is mainly about the content of textbooks. If you learn the content of the textbook well, plus supporting exercises, you can get high marks. If you are a god student, you will try to preview advanced textbooks and increase the amount of knowledge expansion. But only if they have thoroughly understood what they have learned.