Before you (or your students) publish anything, run rough drafts through this Hemingway app. It will highlight weak adverbs, find passive voice, and identify reading levels. Best of all - it's free. Get monthly tips like this one at http://elaseminars.com/opt-in-1.htm
Did you know about this hidden menu on Samsung Galaxy smartphones? You can use it to test different aspects of your phone like if you think your LCD/touchscreen is not working properly, LED indicator, vibration, cameras, etc.