school hacks - Google Search
This list is a snap shot in time but sure to dynamically change. You can already add www.classpager.com to the list. Please add your newly discovered EdApps.
School Cheat Sheets and School Reference Guides - These are the kind of cheat sheets you won't get in trouble for using at school!
7th Grade Math Helper
Rules for fractions
How to Use a Protractor Freebie
MATH COMMON CORE 7TH GRADE
Here's a nice handout for students with tips/tricks to remember different multiplication facts.