1. Function and equation: Understand the concept of function, including linear function, quadratic function, exponential function, logarithmic function, etc. Master the solution of linear equation and quadratic equation; Understand the essence of inequality and its solutions.
2. Trigonometric function: Understand the definition and properties of trigonometric function, including sine function, cosine function and tangent function. Master the basic formulas of trigonometric functions, such as sum-difference product, product and difference; Understand the images and properties of trigonometric functions.
3. Geometry: Understand the concepts of point, line, surface and body; Master the positional relationship between straight line and plane, such as parallel and vertical; Understand the properties of a circle, such as tangent, chord, arc, etc. Understand the properties of triangles, such as Pythagorean theorem, similar triangles, etc.
4. Probability statistics: Understand the concept of probability, including the probability of events, conditional probability, etc. Master basic probability calculation methods, such as addition principle, multiplication principle, etc. Understand basic statistical methods, such as frequency distribution table, frequency distribution chart, etc.
5. Calculus: Understand the concept of limit, including the limit of sequence and the limit of function; Master the concept and calculation method of derivative, such as derivative law; Understand the concepts and calculation methods of definite integral and indefinite integral.