Our children are not much different in age. I want to give these suggestions as communication ideas: 1, do they have even most of their friends at home, if so, buy them quickly; If you don't look down; 2. Did you or the teacher suggest buying this equipment to improve his study, or did he ask for it himself? If it is the former, look down; 3. Children's concentration is better; It is still difficult for children to learn; If it is the latter, look down. 4. Children study best or worst; There are many children and friends who can not only help others, but also help themselves, and their grades are above the average; 5. Children have strong initiative; I still have a strong sense of autonomy. At this point, you probably know the answer. Stimulate children's initiative and autonomy. Ask classmates, ask teachers. If you don't ask for work, why ask for death? Natural children are stronger when they can teach others. If you buy it back, it will increase the load and contrast, and only improve a few results. Very not recommended.