Perhaps seeing the interoperability, Qingbei.com, a large class brand under ByteDance, recently launched a free study room on the incubation line. Its biggest feature is that each study room is equipped with tutors to help students complete their homework and after-school learning online. Moreover, this online small class study room is conducted nationwide for free, and the grouping of classes will mainly be based on the logic of "same city, same school, and even the same classmates". For parents and students, it reduces the pressure of parents to tutor their children, especially the workload of contemporary parents, and sometimes it is impossible to do after-school tutoring for children in time, and each student in the online study room has a camera to see The appearance of students studying seriously creates a good learning atmosphere, which helps students improve their efficiency and develop their study habits. In addition, when they encounter difficulties in writing homework, they can be directly sent to the tutor privately, and the teacher will give them text message service timely and flexibly. Feedback, this method is more efficient than the problem software. For educational institutions, establishing online self-study rooms based on "same city, same school, and even classmates" can easily and quickly enter a tutoring center in a region, and use it as a radiation center to help educational institutions create private domain traffic, thereby Increase and reduce the cost of taking courses. And compared with taking pictures to search for questions, this seems to be more flexible, and it can also reduce the possibility of students copying homework.