This depends on how your teacher has set up your new class. Most classes take previous progress into account, and your teacher will be able to see your previous work. But some schools create classes using 'progress reset', which only look at your progress during that class. For these classes, your teacher does not have access to your earlier work.
For more information, read: What does ‘Progress reset’ mean?
Once your class ends, you will be able to see any progress done on 'My independent learning', and in all the individual classes you join.
We recommend you ask your teacher if you want to know how their class has been set up and what this means for you.