This a website that many teachers are starting to use as adaptive practice in class, as well as for homework some nights during the week.  This website gives your child problems based on how they answered the previous problem, therefore it is ability based and your child should be able to do this independently.  It is fun for them because they earn coins based on the number of correct problems and can then "buy" things from the frontrow store for their frontrow character.

This is a very helpful website to use to practice math skills by printing worksheets categorized by math concepts.

This is a great website to use when your child needs to conduct research.  This search engine only gives results for websites that are age appropriate.

This website also has grade level games to help your child practice their skills at home.

This website has grade level games to reinforce reading and math skills, while still having fun!