We like IXL a lot over here - my son is only 3, so there is a lot for him to putter around in - he is a total math head, has been obsessed with numbers since almost forever, and he is hovering around 3rd grade math, give or take on ixl. What I especially like is the ability to bounce around by grade and skill.

But I was wondering, whats the difference between ixl and singapore math and dreambox and math whizz etc? thanks! smile