Elementary

I Know That - a great collection of educational games, separated by grade level.
FirstGov for Kids  - "A U.S. government interagency Kids' Portal. This site was developed and is maintained by the Federal Citizen Information Center. It provides links to Federal kids' sites along with some of the best kids' sites from other organizations all grouped by subject."
Great Websites for Kids from the American Library Association.
contentsThis website, designed by Wendy Petti, offers excellent math manipulatives for elementary grades.

"'Presidents: The Secret History' exposes quirky facts about our first 42 presidents. What would kids do if they were president? What qualities do kids think make a good president?"

Marcia's Lesson Links - "This site features hundreds of links to children's literature activity and lesson sites."
"Reading Is Fundamental, Inc. prepares and motivates children to read by delivering free books and literacy resources to those children and families who need them most."
A Maths Dictionary for Kids - illustrated math terms

www.whitehousekids.gov

Enjoy animals?  Create your own at the Switchzoo by switching tails, bodies and heads of your favorite animals.  Fun!