To improve students' error correction ability, I think we should start from the following aspects. First, force students to find out the causes of mistakes in solving problems, and encourage students to consciously develop the habit of cultivating their own ability to correct mistakes. Many students don't think much of their mistakes in solving problems, and rashly attribute the cause of the mistakes to the word "carelessness". Indeed, if students answer carefully, many mistakes can be avoided, and the reasons are attributed to carelessness. However, we should let students know that even careless mistakes have a reason. If we understand this reason, careless mistakes can be avoided. Only by forcing students to find the root of their own mistakes can they be urged to pay attention to the cultivation of error correction ability, and only by paying attention to the cultivation of error correction ability itself can they improve their error correction ability.