I'm thinking about immediate safety. If the teachers being on the ships is to help with stability or calming presence, yeah, I get it. But I don't think any of the kids would be up for a history lesson when circling the moon because of the dragon witch. There'll be no focus. So unless it's an attempt to keep their minds off things...feels like the education bit could hold off while the rest of us figure out how to stop Maleficent.