Before your lesson:
You can communicate with your online teacher through e-mails or WhatsApp, making them aware of any aspects in particular that you would like to cover in your next online lesson.
Your online teacher can send you any necessary sheet music, exercises, and notes by email, for you to prepare before your lesson or any websites (mainly Amazon) you could purchase the materials prior to your lesson.
At the arranged day and time, your online teacher will “Video Call” you through Skype, Face Time or Zoom.