Crickweb is a UK-based website offering a good collection of simple games for young learners. On Crickweb you can find games for students to practice and learn the basics of numeracy, literacy, geography, history, and science. There is also a collection of games for used on Promethean whiteboards.

Applications for Education
Educational games can be useful for students to practice their skills individually. You may want to link Crickweb to your classroom website for parents to access at home with their children.

Here are some related resources that may be of interest to you:
XP Math – Math Games, Videos, and More
Word Games to Improve Writing and Vocabulary
All My Faves – Great Websites for Kids