My son is in P4 this year.So far, I have only got past years papers and got him to do it randomly besides his homework . I now think he should be stretched a bit more and I notice specific gaps in his abilities.Any recommedations for P4 books in general? what exactly are "guide books’? can someone explain where I can get them? titles?How do you teach close / composition to your kids?Does maths olympiad books help with exams?TIA