If he is poor at math, it is generally described in several situations. 1. Not interested in mathematics. 2. Wrong math learning method. 3. Poor knowledge learning. Solutions to three kinds of problems: 1. Not interested, you can only cultivate interest. 2. If the learning method is wrong, it is suggested that he buy some basic books, and the counseling materials can be books such as 38 sets of Heaven and Science. Pay attention to the moderate difficulty. 3. Learning is not in place and can only be obtained through training questions. Mathematics must be practiced a lot, so that he can learn to analyze where each mistake is and sum up experience. And the type of each question in general.