Reading through my Twitter last week, someone posted a great app for Geoboards. I checked it out and sure enough, no more flying rubberbands. Children can work on creating shapes, symmetry and reflective symmetry with this FREE app. For the moment, I don't see any downside to the app. You cannot save any of the work, but you could take a photo with another device and save it in Evernote Portfolio if you wanted documentation.