Classic Review is a mode that will show you items you previously learnt in the course, and prompt you to review them at the optimal time in order to strengthen them in your long-term memory.
To access this mode, go to the dashboard of the course you are learning and click on the mode selector (the button with the yellow dots):
Under Review, select the button with the watering can symbol:
In Classic Review, you will be presented with four different testing types: multiple-choice, tapping tests, typing tests and listening tests.
Your goal is to make the faded flower bloom again by successfully completing a test - remember that constant reviewing is essential to ensure that the words and sentences you have learnt stay in your long-term memory!