With the development of the Internet, online teaching has become a reality. Most middle school students still teach in the traditional way, most college students are in online classes, which are becoming more popular in universities and playing an important role.<br>However, teachers and students have different views on online lessons.<br>In general, there are two reasons why teachers support online classes.<br>First; teacher. Students can be taught at home, and students can be modified with the help of computer software.<br>Online classroom can be played back, the teacher does not have to repeat a question many times to explain the students have a different view of the online class and the teacher.<br>First of all, students can not face to ask the teacher questions, and ask the teacher questions is also more troublesome, resulting in problems can not be resolved in a timely manner.<br>In addition, without the supervision of teachers, students' self-discipline is not as strong in school.<br>What's more: computers and mobile phones have a lot of radiation, so the internet class has caused great harm to the eyes of students, resulting in a rapid decline in the eyesight of many students.
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