Learning methods proposed by Cheng Hao and Cheng Yi. The combination of learning, thinking and doing is a learning method put forward by Cheng Hao and Cheng Yi, ancient educators, thinkers and cultural celebrities in China, also known as "Two Courses of Neo-Confucianism". Cheng Hao and Cheng Yi were philosophers and educators in the Northern Song Dynasty. They put forward such philosophical ideas as "learning from things" and "being sincere and sincere", which had a great influence on China's ancient philosophy and education. Cheng Hao and Cheng Yi believe that learning should be combined with practice and applied to real life, so as to truly understand and master it. Therefore, they put forward a learning method of "combining learning with thinking", that is, to increase knowledge through learning and thinking, and then apply what they have learned to real life, and constantly sum up experience through practice, so as to continuously improve their learning and living standards.