The steps to view 126 online courses are as follows: first, open the mile, then search for high school mathematics 126 online courses in the search box, and finally click on the video to watch.

Points for attention in watching online classes, first of all, we must determine the class time, keep the class schedule, study in the mile, do a good job of anti-interference, pay attention to mental health and network security, and don't buy paid courses casually.