I'm thinking this might make a good 5th birthday present for my DS - y'know, he's five, so's Fred sort of thing.

Does anyone who knows about Fred tell me if this is a really bad idea? Also, which I'd be better to get - the new elementary books, or start with 'Fractions'? The site says you can start Fractions if you know your timestables which he does... but should we look at Apples, etc first?