Shanghai junior high school mathematics curriculum knowledge is divided into four areas: number and algebra, space and graphics, statistics and probability, practice and application.

* * * There are 72 knowledge points, including:

1, there is only one straight line between two points;

2. The line segment between two points is the shortest;

3. The complementary angles of the same angle or equal angle are equal;

4. The complementary angles of the same angle or equal angle are equal;

5. There is one and only one straight line perpendicular to the known straight line;

6. Of all the line segments connecting a point outside the straight line with points on the straight line, the vertical line segment is the shortest;

7. The parallel axiom passes through a point outside the straight line, and there is only one straight line parallel to this straight line;

8. If two straight lines are parallel to the third straight line, then the two straight lines are also parallel to each other;

9, the same angle is equal, and two straight lines are parallel;

10, the internal dislocation angles are equal and the two straight lines are parallel;

1 1. The internal angles on the same side are complementary and the two straight lines are parallel;

12. Two straight lines are parallel with the same included angle;

13. Two straight lines are parallel and the internal dislocation angles are equal;

14. Two straight lines are parallel and complementary;

15. Theorem The sum of two sides of a triangle is greater than the third side, and so on.