My students spend a lot of time working in differentiated groups. That means that I’m constantly circulating to make sure that everyone is on task. Sometimes I need to quickly review a skill for a group. Instead of carrying a small dry erase board (and turning my fingers different colors from messy Expo markers) I take my iPad from group to group and draw on the screen.
Using a whiteboard app like Educreations, I can work through a math problem or draw the arc of a story. In a small group using Educreations I’ll take snapshots of student work to annotate, just like I would grab a fantastic example and place it in under my Elmo projector for the whole class to see. This is a great tool for a one iPad classroom!