Online class is that the teacher records the lecture first, and then puts it online for you to watch the recorded video, while online live class is that the teacher shares his desktop and other information with other students in real time. Nowadays, with the continuous expansion of educational methods, many people understand that learning is not sitting in the teacher's classroom and listening to the teacher's lectures. Allowing more children to study independently outside the classroom will help children develop a more pure learning attitude. It is based on this environment that children's learning is no longer a burden, and they can determine their learning plans according to their own situation.