"Popplet is the simplest tool to capture and organize your ideas. With Popplet you can quick jot down your ideas and sort them visually. " You can always use it from story maps, uploading photos, and creating presentations!
Por si algún profe quiere investigar sobre estas 70 apps y ver si le son de utlidad. Yo uso algunas // The 70 Best Apps For Teachers And Students - Edudemic. These are listed as itunes apps, but I'm sure a lot of them can be found for Android as well.