This is an enormous resource. I highly recommend it. Spend a little time clicking on the Blue Tabs at the top - Home, Teacher Guides, Google Tools, Video Tools, etc. to get a sense of what's available.
A Site worth looking at for Elementary, Special Education, and ELL students. Some of the tools might be a bit pricey. Look at the Blog and seriously think about an RSS feed. The links to resources are awesome.
Scholastic.com, the flagship Internet portal for the world's largest publisher and distributor of children's books, offers content and products for children ages 0-13 and the educators and family members who support their development.