You'll notice the pages of this wiki (on the left hand side) are the Common Core Standards. We have attempted to align iPad apps with each standard. There will be overlap - one app may meet more than one standard. Please leave comments, suggest apps, or share your experiences in the discussion tab of the appropriate page.
This two-page PDF provides a resource for the different text structures for expository writing. It includes definition, signal worlds, graphic organizers, summary questions and paragraph frames for each text structure.