Most schools don't require junior children to take online classes, especially kindergartens, because they don't have too much homework, and staring at the screen for a long time is easy to affect their eyesight. The World Health Organization has done research on children watching electronic screens. They don't recommend that babies under two years old use any electronic products. Although two-year-old to three-year-old babies can watch, each time should not exceed 20 minutes, and the total time per day should not exceed 1 hour.
If even kindergarten children refer to online classes, parents simply can't control the time they watch electronic screens. Long-term use of electronic products such as phablet will increase the probability of myopia in children. The main function of kindergarten is to improve children's social ability, cognitive ability, life skills and so on, and there is no need to instill any knowledge in textbooks at all. Don't worry if you can't attend class. Parents may wish to spend more time with their children and cherish the limited parent-child time.
The concentration time of kindergarten children is usually about 10~ 15 minutes. If a child wants to finish a really quiet online class, the teacher must grasp the rhythm of the class, and the content of the lecture should be enough to arouse the child's interest and interact with the child during the class, otherwise it is impossible for the child to sit there quietly in class. At the same time, parents should also play a supervisory role, for example, give a little reminder when the child is about to be distracted, but be more patient and don't force the child to finish the online class.