The child is driving his father crazy. The teaching methods in middle schools should be different from those in enlightenment, at least in quantity. According to the requirements of middle school, primary school students have to be tired of learning. Why don't you two do something to make your children interested in learning? It is recommended to use the digital planet app, which is what my children use. I started using it in kindergarten, and now I'm almost in grade two. I have cultivated my study habits very well, and I will learn by myself then. This app puts math knowledge in a game like Shaoguan. Which child likes to play? I also learned a lot. Anyway, my children have been good at math since they used this.