Thanks for the advice. A-Z book sounds like a good idea, will give it a go. He seems to struggle with 'seeing' the word though, even if it's words he knows and is familiar with. Once I point out the answer he's like 'oh yes of course!' He's never seen anything like it before though so hopefully will improve with practice.
Crosswords is a good idea, will try to find something suitable. Good luck to your dd for the 12th
Any once else found that their child struggled with this? How did you overcome it? This forum is great by the way, so helpful when trying to DIY, especially as DS is the eldest and never done anything like this before. When I sat the 11+ it seemed a whole lot simpler!