We often say that "interest is the best teacher", and it is of great significance to stimulate students' interest in learning to realize students' autonomous learning and enthusiasm for learning. Primary school students' stress tolerance is also relatively limited. If the homework assigned by teachers is too heavy, it will lead to the decrease of their learning enthusiasm. In addition, primary school students have a strong curiosity. If teachers can arrange some interesting homework in the teaching process, they can stimulate students' enthusiasm for learning and realize the effective completion of homework. For example, the teacher can give students an assignment: everyone has to go back and forth between school and home every day, so do you know the distance from your home to school? We won't leave any written homework today. Today's homework is to calculate the distance from home to school. Everyone will report to me in class tomorrow. Let everyone use their imagination to calculate. As soon as the question came out, everyone got excited. The next day in class, some students said, first measure how much you can walk in one step, and then count how many steps you have taken to know the distance; Some students said that the data measured by only one step is not accurate, and it is more accurate to measure a few more steps to get the average value of each step; Some students also said that he measured the radius of his bicycle wheel, then got the circumference, and then got the result according to the number of times the bicycle wheel turned; Some students also said that measuring one by one with a tape measure got more accurate results? Everyone's interest in this kind of homework made me realize that interesting homework is very popular with students, and it can also stimulate their learning initiative and receive better teaching results!

Second, we should pay attention to the openness of homework. In traditional mathematics teaching, the homework assigned by the teacher is often a lot of calculation problems. Monotonous questions not only kill students' enthusiasm for learning, but also greatly affect the development of students' thinking ability and creativity. Therefore, in the teaching process, teachers need to pay attention to the arrangement of some open questions, guide students to divergent thinking and cultivate their good thinking ability. In addition, when assigning homework, teachers should also be good at stimulating students' learning autonomy, such as guiding them to design their own homework and exchange learning experience. Stimulate students' interest in homework through colorful forms and reduce their learning pressure. The open homework with ingenious design, rich content, novel form and divergent problem solving provides students with a broad thinking space. Students can use the knowledge and methods they have learned to get their own satisfactory answers from their own understanding and methods of dealing with problems, and better stimulate students' creative consciousness of exploration and discovery. In addition, open homework has a low starting point, many levels, different answers and diversified strategies, which makes it easy for students to get started. It enables all students to choose their own starting point, think and experience success, and embodies the mathematical idea that "everyone masters mathematics and different people learn different mathematics".