DD's school do intervention sessions for the next exam which seems a good way of doing it to me.
She's not managing to revise at all at home. DH died unexpectedly at the start of the Easter holidays and she doesn't see the point in doing anything. She managed to hold it together last week for the first three exams, but I had to drive her to school in tears on Monday for chemistry and geography. School are trying their best to be helpful, but she's finding it really difficult understandably, and there's nothing I can really do to help.