As much as I've loved the Common Core Standards app from Mastery Connect, there is a free Iowa Core standards app NOW AVAILABLE! Teachers will absolutely LOVE this. Download it at any of the following:
Available for iPad/iPhone: https://itunes.apple.com/us/app/iowa-state-core-standards/id930169521
Android on Google Play: https://play.google.com/store/apps/details?id=com.masteryconnect.ia&hl=it
~Special thanks to my awesome colleague and great friend Deb Henkes @ Keystone AEA for sharing!