Correcting homework is a routine work of primary school teachers, and it is a supplement and improvement to classroom teaching. When correcting math homework, we are used to using "√ ×" to judge whether it is right or wrong, and using the percentage system to measure the score. This method plays a certain role in evaluating students' academic performance, judging whether solving problems is right or wrong, and comparing learning differences. However, it is boring, lack of motivation, and the evaluation result is one-sided, which can not comprehensively evaluate a student's basic quality and learning potential. In addition, simply using "√" and "×" to evaluate learning thinking and academic performance will affect the ideological and emotional communication between teachers and students and directly affect students' learning mood. How to improve students' interest in learning and give full play to their initiative through homework correction is a crucial issue. I think it's better to do so, and make a proper comment:

Comment is a way of correcting homework, which helps students to understand the advantages and disadvantages of their homework more clearly, and can also strengthen the communication between teachers and students, and promote the harmonious and unified progress of students in all aspects. This paper introduces comments into math homework correction, points out its shortcomings, affirms its achievements, mobilizes students' learning enthusiasm and achieves good results.

Comments such as; "The method is great, but be careful!" "Wonderful solution, wonderful", "You must have a wonderful idea, because you are my pride". Don't scold exercise books with particularly poor quality. On the contrary, try to find their bright spots and mobilize their enthusiasm in an encouraging tone. "You can do it!" "You have made great progress because you work hard." "I am very happy to see that you are making progress. I hope you by going up one flight of stairs. " This kind of emotional comment makes students feel the teacher's concern for him, full of hope, and will gradually have a strong interest in learning.

Some problems have multiple solutions, while students only use one. You can write: "Is there a better solution?" "If you love thinking, you must have brilliant ideas!"