Using the PicCollage App:
PicCollage is a great app that allows students to show what they know by creating picture collages or posters. Student work can be emailed directly from the app as an image file or saved to the iPad's camera roll where it could then be shared through Google Drive, Dropbox or other web cccccccccccservices.
Click here to download PicCollage.
Watch the tutorial below for instructions on using PicCollage.