ZooWhiz
Target Audience: ages 4 to 15
Link: www.zoowhiz.com/
"ZooWhiz is the intelligent online learning system that automatically adapts to each child’s learning needs, creating fully differentiated individualised learning pathways with ease. ZooWhiz combines one-to-one curriculum correlated coverage of maths, word skills and reading for children aged 4 – 15 with advanced reporting capabilities. It motivates and liberates children to learn, and empowers educators." (source)
Click on image to go to site