Does anyone remember from the Half Blood Prince if Padma was a student in Newt Potions.? Also were all the houses mixed in Snape's Defense against the Dark Arts Class or were students attending by house as previous years were? Are only Gryffindors in the class with Harry? As fewer students took Newts level classes they appeared to be more mixed than the OWL level classes were.
I don't have my book and would welcome some advice from HP experts.