If your children use the Oxford Reading Tree phonics scheme at school then they are probably familiar with the Songbirds books by the wonderful Gruffalo author Julia Donaldson. These are the books that are so much more fun than the Biff, Chip and Kipper ones (with the exception of the Magic Key ones, they're ace).
New to The Book People is this collection of Activity Books based on the Julia Donaldson Songbirds books, and the set of 8 is at the amazingly cheap price of £6.99! This works out at just 88p per book compared to the going rate of £2.91 that I can find online currently.
You do need to add on £2.99 for delivery if this is all you are ordering from The Book People, but that still comes to less than £1 per book, which is still a brilliant price.
Each book has reading and writing activities that are in line with the various stages of the Oxford Reading Tree Books, and so they can be used in conjunction with your child's reading level. There are phonics activities that will reinforce what they are learning in school, and these are particularly good for keeping them practising in the school holidays.
These books are aimed at 4 to 6 year olds primarily, but that will depend on your child's own reading and writing progress. We have used the Biff, Chip and Kipper version of these activity books, and I would definitely recommend them.