This document discusses using mobile devices and apps in the classroom. It introduces several online tools and apps that teachers can use, including MeetingWords for backchannel discussions, Animoto for making slideshow videos, VoiceThread for leaving audio or text comments on slides, Flipgrid for creating a grid of student video responses, and Seesaw for students to complete and submit assignments. It also mentions apps like Easy Grade for calculating grades and ZipGrade for scoring scanned assignments. The goal is to engage students through technology and innovative teaching methods.