Hi Nokutenda,

The classes on Khan Academy are set up by teachers who already have classes and want to assign their students work on Khan Academy. They are not open to join; you have to have been sent a class code or invite link by your teacher.

This article shows how to add coaches to a child account.

If you want to add a teacher, go to the Khan Academy website and click Teachers from the bar on the right. Then add your teacher's email address.

I hope this helped!