Prodigy is an online resource where students can engage in math games. 

While some areas of Starfall are part of their premium service, they have many early reader stories available for free.  Students can follow along as the story is read to them and can, in some instances, help create their own story.  The website is highly engaging and a favorite of young readers.

Children can listen to short stories read aloud to them as they follow along with the highlighted text.  ABCya! has a variety of educational games in addition to the featured stories.  Free resources and materials are available for grades K through 5.