If it is a school's healthy punching, it is usually set at a fixed time, and a punching reminder will be pushed in the class group. At this time, just click on the punch. The other is that under the class group, you can find the option of punching in, which can also be found inside;
Another way is to look for work options at the bottom of the initial page.
After entering, the first column is safe resumption of school. You can find a health punch card or add it through more options.