In the past, junior high school mathematics was to learn algebra first and then geometry. Later, it was changed, algebra and geometry were taken together, but the content of algebra was relatively more in the lower grades.

For example, in the sixth and seventh grades, I first learned the operation of rational numbers, and then learned the operation of algebra, fractional operation, linear equation of one yuan, linear equation of two dimensions, linear equation of three dimensions, solving application problems by column equations, plane rectangular coordinate system and so on. In geometry, we only learn the concepts of straight lines, line segments and rays, the properties and judgments of parallel lines, the conceptual properties of triangles, the judgment properties of congruent triangles, the translation, rotation and folding of figures, etc.

The eighth grade and the ninth grade began to learn functions, and the geometric content deepened. To learn the properties of parallelogram, rectangle, rhombic square and isosceles trapezoid, to learn the conceptual properties of circle, to learn the operation of real numbers in algebra, especially the operation of quadratic roots, and the solution of quadratic equation in one variable can be transformed into fractional equation and irrational equation in one variable, quadratic equation in two variables and application problems.

Concept of function, proportional function and inverse proportional function, linear function and quadratic function, etc.

Therefore, junior high school mathematics basically follows the order of easy before difficult, algebra before geometry.

According to the eight contents you want to learn, I have arranged the order for you. Please refer to:

Addition and subtraction of 1. algebraic expressions

2. Multiplication of algebraic expressions

3. Factorization

4. Fractional operation (addition, subtraction, multiplication and division)

5. Solve the unary linear equations and unary linear inequalities.

6. Solve binary linear equations and ternary linear equations.

7. Solving application problems with column equations (groups)

8. Real number operation (including mixed operation of quadratic roots)

9. Solve a quadratic equation with one variable

10. The solution can be reduced to a fractional equation of quadratic equation and an irrational number equation.