Algebra mainly has the following points: 1, the operation of rational numbers, mainly about the three-level operation of rational numbers (addition, subtraction, multiplication and division). Here we should pay attention to the symbolic consciousness of numbers and letters, that is, don't be influenced by primary school numbers, and don't do problems as soon as you see letters. 2. Three-level operation of algebraic expressions, pay attention to the cultivation of symbol consciousness, factorization interchangeable with multiplication of algebraic expressions, and pay attention to the positive, negative and deformation of square difference formula and complete square formula. 3, the equation, will be one yuan once, two yuan once, three yuan once, one yuan twice four equation solutions and applications, remember, the equation is a method, is a means of solving problems. 4. Functions will recognize the images of linear functions, quadratic functions and inverse proportional functions, remember their characteristics and apply them according to conditions. Pay special attention to quadratic function, which is the key and difficult point of the senior high school entrance examination.

Geometry mainly has the following points: 1, and you should be familiar with recognizing various plane and three-dimensional figures. 2. Translation, rotation and axial symmetry of graphics. This examines your spatial imagination and does more questions. 3. Prove the congruence and similarity of triangles, pay attention to the complete process and strict steps, recite five methods to prove the congruence of triangles and four methods to prove similarity; There are also properties such as isosceles triangle, right triangle and golden triangle, which will be of great help to prove the problem if they can be applied. 4, quadrilateral, master the concepts of parallelogram, rectangle, square, diamond and trapezoid, and make a big fuss about the subtle differences between them in the selection, pay attention to their judgments and properties, and will also be tested in the proof.