I Know That.com
by KYW's Bob Bicknell
Here's another great site to share with your children.
Designed for students in Pre-kindergarten through sixth grade, IKnowThat.com will challenge you and your children to learn more about math, language arts and science.
Subscribe for $35 a year, and view the site without banner ads, track your child's progress online, and share a blog with other subscribers. Best of all, submit your own ideas and earn points toward a free subscription and prizes.
Go to IKnowThat.com.