When Clara entered the classroom, the first thing she noticed was the skin. That was a little disturbing to be honest...like a tablecloth made of human skin. But she saw the burns, and she figured they'd be making Burn Healing Paste, so it was appropriate and useful, if not conventional. Then again, Clara had always despised the conventional when it differed from what was appropriate and useful, so she took it in stride, and gave mental props to the professor.
Seeing she was once again the only one there, Clara took a seat near the front of the room. She never really cared where she sat, but she figured if the class was going to be as empty as last time, it would be more practical to sit closer to the professor.
She'd made Burn Healing Paste before. In fact, she'd made some over the summer in her room, after her father burned his hand while cooking. She wasn't entirely sure if that was legal, but since potion making didn't require any wand waving, it wasn't technically underaged magic, and probably undetectable under the Trace. In any case, no ministry officials showed up at her doorstep, and her father's hand healed perfectly, so she certainly didn't regret it. She wondered if her parents even counted as muggle witnesses if she performed magic in front of them, considering they already knew about magic. That would be rather stupid if they did--she wasn't hiding anything from her own parents, it wouldn't make a difference if they saw or not. They already knew they were sending her to Hogwarts.
She decided to research the question later. She took her seat, and retrieved the supplies that she would need from her bag, having already memorized the recipe.