As soon as you know that you’ll have to miss a class, email, text, or Whatsapp your teacher, before 17:00. If all students give permission, the teacher will record the class. You’ll receive the link to the recording the next day. The recording will be available for 48 hours.
When you don’t ask to record, you cannot catch up.
However, as long as time differences permit, you can join your online classes anywhere. That’s why many students, when at a conference, business trip or a short holiday, still participate in the lesson.