When the new knowledge learned is superior to the original cognitive structure, that is, the original knowledge is a subordinate concept, and the knowledge learned by the peach is a generalized concept, such learning is superordinate learning. On the contrary, if the new knowledge is related If the original knowledge is subordinate, it is subordinate learning. And if the new knowledge is only composed of a reasonable combination of related content of the original knowledge, it cannot form a higher-level relationship or a lower-level relationship with some specific content of the original. ['Students learn parallelograms before learning rectangles.', 'General review after learning everything.', 'c. Learn theoretical knowledge first, then practice skills.', 'In order to explain a grammatical structure, the teacher first gave a lot of example sentences.']