? The first is the damage to students' eyes. Students in China are under great pressure in class, and every class is full every day. Students have to stare at their mobile phones or computers all day. It's not like going to the classroom online. Students only need to look at the blackboard and textbooks. Looking at the words on mobile phones and computer mobile phones for a long time is too small, and the computer lights are too bright to produce blue light, which is easy to cause eye pain and eye fatigue, causing pseudomyopia or aggravating myopia. In severe cases, it will also cause retinal detachment.
? Secondly, long-term online education, children sitting in front of the computer all day, may also cause back and spine pain. In fact, this is not only the influence of online education, but also the problem of students taking classes offline. Junior students will spend more time in extracurricular activities and have less backache. Senior three students, especially fresh graduates facing the pressure of further education, sit in their own positions almost every day. Physical education class is either occupied by the main teacher or has to do his homework. Every day, he seldom walks, drinks water and goes to the toilet, and runs during recess.
? In addition, online education may also have an impact on children's mental health. Without the supervision of teachers, students will inevitably let themselves drift, but at the same time, they will regret if they don't listen carefully, and they will be anxious that their grades will plummet after school starts, and the mental health problems brought about by psychological pressure can not be underestimated. In short, we should make rational use of the advantages and disadvantages of online education. Seek attention and praise.