(1) meaning

The principle of gradual progress refers to teaching according to the logical system of the subject and the order of students' cognitive development, so that students can systematically master basic knowledge and skills and form strict logical thinking ability.

(2) Basic requirements

① Teaching according to the systematization of teaching materials;

(2) Grasp the principal contradiction and solve the key and difficult points;

③ From shallow to deep, from easy to difficult, from simple to complex;

④ Combine the coherence, flexibility and diversity of the system.