Common Core Resources
National Geographic and the Common Core is a small collection of web and print materials from National Geographic that can be used in ELA lessons aligned to Common Core standards.
ReadWorks is a free service that has cataloged hundreds of lesson plans and more than one thousand non-fiction reading passages aligned to Common Core standards. With a free ReadWorks account you can search for lessons and reading passages by grade and skill. In your account you can create digital binders of the lesson plans and reading passages that you want to use.