educational games

GridClub is the official Department for Education and Skills (DfES) education website for 7 to 11 year-old children.
BT Education
BT Game zone for Children, Parents and Teachers.
BBC Children's Zone
cBBC Games
BBC Children's Games
Learning Zone
Schoolsnet pages for children
Fun American games site
Excellent online educational games
Fun with Spot
Fun for Cygnets
Fun for all ages (American)
Primary Resources
These online activities are linked to the Literacy and Numeracy strategies and the new National Curriculum.
Ladybird
Fund and games from the famous publishers
revision
SATs Revision
The ReviseWise website is packed with activities and questions to help you prepare for the National Tests.

maths

Abacus
Simple but excellent Abacus

What's my Angle

How to use a protractor
Magnetic Numbers
Various fun number games
science & technology
BBC Science
Full of beautifully presented information
How Stuff Works
Loads of free details about how lots of things work
Minibeasts
Interesting and informative site about little creepy crawly animals like slugs, snails and spiders
various activities
Enchanted Learning
General Activities, Science etc.
3DMaze
Great for all >6
Midi Melodies
Traditional music from all over the world in text and midi (great to sing along to)
Poetry by school children