DD chipped in about how her geogphy teacher harps on at them to answer the actual question, that Miss takes perverse delight in writing red lines thru exam material that didn't answer the right question.
My history teacher used to do this with our essays, many years ago. Sir put his red pen through anything that didn't address the actual question, and wrote 'Relevance!' in the margin.
Perhaps teachers should write RTFQ on the board at the start of every revision session? That and the instructions at the head of the paper, which was also dinned into us.
(Any other Antonia Forest fans here? Thinking of the exams in Cricket Term.)