Both my dc are working on grade 3 music instrument exams to be taken this term. The time when grade 5 theory is required is not too far off so I want to try and plan to get it done in time. I do have grade 5 theory myself (from when I was a child) but neither my mum nor I can remember what book/s we studied or where they were from 
We have the music theory for young musicians grade 2 and grade 3 books and the kids are getting bogged down, particularly with beaming loads of seniquavers. I was wondering if there was a single book that prepares you for the grade 5 music theory exam or if they have to plough through every book - if that is the case, do they have to memorise material from all 5 books or just the last G5 one? Any help appreciated! Kids 10 yo and 11 yo. 10yo more motivated but neither are highly motivated when it comes to theory, they prefer to play.