Once a day in the initial period of use (within one to three months), try to choose the same initial period (within one to three months) every day. Each time is controlled at about 3-5 minutes. If the child strongly requests, the duration can be appropriately relaxed to 7-8 minutes, and try not to exceed 10 minutes. On the one hand, the purpose of controlling time is to keep the child's appetite and end it when the child is still unfinished, thus stimulating the child's desire to continue learning. On the other hand, from the perspective of children's eye health, after all, eye health is more important. 2. What is the matter that children are not interested in all-round courseware? A: Sometimes parents are too anxious, hoping that their children can master the content of the courseware as soon as possible or are eager to make up for the knowledge left behind by their children. This kind of anxiety can easily turn into pressure on the child's head, so that in the process of use, the child will inevitably have bad emotions. After a long time, children will naturally get bored with courseware. If this happens, you can stop using it temporarily and start gradually after the child's mood recovers. In addition, it is worth mentioning that courseware must be used when children are in a good mood. If you use it when the child is in a bad mood, the child will transfer the bad mood to the courseware, which will affect the use. At first, the baby liked watching it, but later he didn't like it. Why? A: Some parents want to see the effect of their children's use as soon as possible and give them a blunt test. If their children don't reach the level of parents' satisfaction, they will criticize their children, give them negative education, and make them afraid and tired of courseware. Naturally, they don't like it. In this case, parents should first guard against arrogance and rashness, give their children a space to learn and adapt, and don't blindly take exams. Let the children express themselves and give positive affirmation and encouragement when the children behave well. In addition, it should be noted that courseware should not be used frequently, especially when learning new knowledge. If you use it too fast and too much, it will inevitably lead to the "blocking" phenomenon of children's knowledge absorption, which will inevitably lead to boredom.