We all attach great importance to students' interest in learning. Some people say that interest is the best teacher. Some experts have also said that the teaching of mathematics in primary schools is mainly in two aspects, one is interest and the other is habit, both of which are very important. But I want to say here that a teacher often creates a very interesting situation in order to stimulate and mobilize students' interest in learning. The situation you create, no matter how it interests students, must be in this class with you. The knowledge mentioned in this unit should be closely coordinated and closely linked. It is not advisable to say that there are two layers of skin between the two. It is best not to create a situation that has little to do with knowledge. It is not bad to cut to the chase, so it is very important to pay attention to students' interests, from which I think it is very important to stimulate students' emotional motivation.