Flashcard exercises

Exercises of the "flashcard" type should be completed as follows:

1. Click the "Next card" button to see the first card.
2. In relation to this card, complete the task specified in the instructions at the start of the exercise.
3. Click the "Next card" button again to see the correct answer.
4. Click the "Next card" button to see the next card, and repeat steps 2 to 4.
5. When the final card is reached, the sequence restarts from the beginning.
6. If you are confident you know the correct answer for a card which is visible, click the "Delete card" button to remove the card from the current session of the exercise.
7. Continue going through the remaining cards until you are confident you know all the correct answers.