Are you asking about the difference between face-to-face instruction and online class? I think each has its own advantages. Face-to-face teaching has been developed for many years. The advantage is the accumulation and wide distribution of experience, and the disadvantage is the rapid development, which leads to the good and bad teaching quality. For example, online training for Chinese painting has emerged in recent years, with the advantages of convenient classes, being close to the people and high utilization rate of teachers, such as cashew nuts. Generally speaking, a teacher can teach more students. For example, students in a fourth-tier city can attend the best teacher's course with students in a first-tier city. Some people like to attend face-to-face lectures, thinking that many students feel better when they study together. Some people are more receptive to new things, like to teach online, and arrange study time under the guidance of teachers. In short, whether it is face-to-face teaching or online school, it is ultimately up to your own efforts.