I was recently doing some material in class on phrasal verbs. We were using a CAE course book, which told the students they needed to know whether a phrasal verb is transitive or intransitive (does it take an object or not). And if it's transitive, they should know whether it's separable or inseparable.
Personally I'm not so convinced students need to know the grammatical properties of each phrasal verb so much as seeing them in context and getting practice in using them. But that's another story.

