Bruno's Lesson and Demonstration
Isabela would have helped out while trying not to take too much attention from Bruno (although when her power was introduced the magic circle may have gotten outlined in flowers! She'd also have been protective after he starts looking tired, and shooed away anyone else who wanted a vision. ;)
Katarin and Prudence are pleased with their visions, and presuming someone translates, Sirius is going to be fascinated and weirdly delighted with the emerald plaque. He thought only the adults were allowed to volunteer, but look, he got picked anyway!
Arcturus will probably have a few questions at lunch or the end, but he's trying not to seem too worried so it'll be more like 'but what would happen if he never got on a broom again?'