Attending classes in Pokemon Scarlet & Violet is only half of what you can do at Naranja (Scarlet)/Uva (Violet) Academy. As you sit in on lectures, you'll eventually unlock the subject's respective midterms and finals. However, you may notice that not every class is available when your character starts their Treasure Hunt. You'll need to win the Gym Badges to unlock more lectures. To pass the midterms, you'll need to answer 3 questions correctly. To pass the finals, you'll need to answer 4 questions correctly. You'll receive x5 Exp. Candy S for passing a midterm, and x5 Exp. Candy M for passing a final. While classes and tests may seem tedious, you'll want to complete them to unlock more of Scarlet/Violet's in-game features and rewards.