There is no need to take class notes in primary school mathematics. As long as you listen carefully in class, complete the task according to the teacher's requirements, think positively and participate in classroom activities.

If necessary, you can look at the specific situation of students from the situation of doing homework. If parents are free, you can ask your children to explain the wrong questions to you and see how they master them. If you can say it, you will understand. If not, teachers and parents need more guidance.