If you don't do this, the automated attendance system will mark you absent. You have to go back to the Classes Tab, open each class and open an assignment EVERY day. If you open an assignment through My Schedule or the Class Home or Plan, you may be counted absent. You are required to attend the Class Connect sessions, but even if you do attend one, you STILL must log into that class through the Classes Tab as described above. It's just a glitch with how the automated attendance system works, so please establish a habit to check off every class every day so that you don't have any problems with attendance!