1. algebra
Equations and inequalities: This paper introduces the solutions of one-step, two-step and multi-step equations, covering all kinds of equations and inequalities.
Linear equations: This paper introduces the solution of linear equations and its application in real life.
2. Geometry
Plane geometry: discuss the concepts of parallel lines and intersecting lines, as well as related angle properties, properties and calculations of polygons and triangles.
Space geometry: including the related knowledge of solid geometry, such as the surface area and volume calculation of solid graphics.
3. Probability and statistics
Probability: introduce the basic concept of probability, the probability calculation of events and the practical problems related to probability.
Statistics: discuss the collection, arrangement and description of data, and make and explain statistical charts.
4. Numbers, functions and charts
Mathematical operations: review basic mathematical operations, such as the calculation and application of integers, fractions, decimals and percentages.
Function and diagram: Introduce the concept of function, draw function images and analyze the relationship between functions.
5. Application problems and solving methods
Application problem: guide students to use their own mathematical knowledge to solve real-life problems, such as financial, commercial, scientific and other fields of application problems.
Problem-solving methods: cultivate students' thinking ability to solve problems and guide students to analyze and solve problems from multiple angles.
The above topics may be slightly different in different textbooks, but they are usually included in the first volume of the eighth grade mathematics textbook. These topics cover the basic knowledge and skills in algebra, geometry, probability, statistics and other fields, and help students build mathematical thinking and problem-solving ability.