Cool MathsMaths games and puzzles for a range of topics.http://www.coolmath.com/
BBC Schools 4 - 7 YearsA range of subjects for 4 - 7 year olds by the bbc.Has many subjects including PSHE, Science, Numeracyand many others.
Mathmatics NrichmentSome maths problems, investigations and games. Not all of it is suitable for the primary school and needs the teacher to set it up.http://www.nrich.maths.org.uk/
The BBC schools website.
Games, activities, songs, colour in online pictures and dot to dot.http://www.bbc.co.uk/schools/websites/eyfs/