You will find many useful web sites listed below for your kids to use.  Some of them can be used for research, some for review, and some for practicing skills they learn at school.  There are a few just for fun also!

Research
Yahooligans! The web guide for kids.  A great search engine for kids.
Ask Jeeves Kids  Excellent kids' search engine - smart, easy to use, and kid-safe
Anne Arundel County Public Library, Maryland Visit the web site of the county library.  Get homework help, reserve a book, access online encyclopedias, magazines and newspapers.
Education World® The Educator's Best Friend Safe search of 500,000 web resources
Lycos Zone Home Page Kid friendly search engine
KidsClick! Web Search For kids by librarians

Math Games
Math Facts - Math Facts Review

Approved Math Websites
More Math Facts 
A Plus Math
Interactive Math
Math Flash Cards

Tangrams   
Math Puzzles
Tangrams

Money Websites
Sense and Dollars
Money Experience

Problem Solving Websites
Math Stories
Brain Teasers

More Resources
Interactive Math - Lets the teacher choose the skill that needs reinforcement!
Basket Math - A variety of math skills for all ages!
Math Flashcards - Easy site for Math flashcards!

Math Fun
Fun Brain 
Multiplication
One-to-One Correspondence

Full-text access to research materials - contact Mrs. Hutchison for passwords:
Full Text Databases  EBSCO Information services
LMS Electronic Databases AACPS Library Media Services electronic databases
NewsBank InfoWeb

Homework Help
Anne Arundel County Public Library, Maryland - Live homework help, free.
Saxon Math web site Find out more about the new Math curriculum.
Open Court Reading web site  Find out about the new Reading curriculum.

Just for Fun
Sandlot Science This site has lots of optical illusions and weird experiments that might teach you something unless you're careful.
http://yucky.kids.discovery.com The yuckiest site on the internet! Ever wonder why we burp, hiccup, poop, and vomit? Find out why your body needs to do this stuff (even if it does gross you out) and get your science questions answered, learn bug and worm secrets, and explore revolting games, recipes, and crafts.
Webmonkey For Kids The fun way to build web sites.
HowStuffWorks  Learn how stuff works!
Switch Zoo Make your own new animals.
Math Sense and Dollars Think you know about money?  Let's find out.
Fun Brain Fun games in lots of different subjects.
APlus Math This web site was developed to help students improve their math skills interactively.
Solar system Simulator View different objects in the solar system.
Brain Pop Movies and quizzes with facts about almost everything.
National Zoo Smithsonian National Zoological Park, Friends of the Nationsl Zoo.
Teach R Kids Math - Math for elementary school kids