Five: 1. Functions (linear function, inverse proportional function, quadratic function) account for about 15% of the total score. 2. Simplification of algebraic expressions, fractions and quadratic roots 3. Application questions account for about 30% of the total score in senior high school entrance examination 3. Application questions account for about 30% of the total score in senior high school entrance examination 5. Circle, accounting for about 65,438+00% of the total score of the senior high school entrance examination.

Function is one of the necessary knowledge points in mathematics for senior high school entrance examination, which occupies almost every question type in the examination paper-multiple choice questions, fill-in-the-blank questions, analytical questions, and even many senior high school entrance examination papers take function as the last question. The function types in the test paper focus on quadratic function, which has many knowledge points and changeable questions. In the final solution, geometric figures will also be combined as the finale. This part is the focus and foundation of junior high school mathematics learning, which runs through the whole junior high school mathematics knowledge and is the basis of mathematical operation. According to Qin Xue Eton Education, it usually appears in the senior high school entrance examination paper in the form of multiple-choice questions and fill-in-the-blank questions, but it is also the basis for answering questions completely. The firmness of knowledge points and the proficiency of operation ability are directly related to the correct rate of answering questions. If this knowledge point is not mastered well, it will also have a direct impact on the following equations, inequalities and function learning. The application problems in mathematics examination include the application of equation (group), linear inequality (group), function, triangle solution and probability statistics. Geometric figures mainly include knowledge points of triangles and quadrilaterals, among which triangles are rich knowledge points in junior high school geometric figures, and are also the necessary basis for learning plane geometry well, which runs through the geometric knowledge from the second to the third day of junior high school and is also the difficulty of junior high school mathematics knowledge. The knowledge points of circle test are mainly the basic properties of circle, the positional relationship between point, straight line and circle, the central angle and peripheral angle, the nature and judgment of tangent, the arc length and area of fan. Among them, the nature and judgment of tangent line, the understanding and application of basic properties in circle, the positional relationship between straight line and circle, and the calculation of length and angle of some line segments in circle are the key and difficult points.