iPad Backup
How to Backup your iPad
See these directions from Apple: How to back up your iPhone, iPad, and iPod touch
What to do if you don't have enough iCloud space to backup
If you receive a notification that your iPad has not backed up in many days or weeks it is often because you do not have enough iCloud space available for the iCloud backup to run. Apple provides 5 GB of free iCloud space so if the amount of data for the apps currently selected to backup on your iPad is more than that 5 GB of space, the iCloud backup will not run.
More information from Apple on managing your iCloud storing and suggestions for reducing iCloud use are at Manage your iCloud Storage
You can check how much backup space an app is using or disable backup for any app on your iPad using Settings > iCloud > Storage > Manage Storage > Backups / This iPad > Backup Options.
Do not disable the backup for any app that contains important school work or notes unless you know you have that work saved somewhere else.
While any app could be taking up backup space, usually images and videos take up the most. If that is true for you, here are the three most popular options used at D-E to get your backup working again:
Option A
If the Photo Library/Camera Roll is the issue, delete images and video that you no longer need or that you have saved elsewhere especially if you have images and video you don't need for school work. (Google Drive is a good place to put copies of images or videos since you have unlimited space there.)
Option B
Disable backup of the Photo Library/Camera Roll. If you do this, you NEED to make sure that if you have anything important for school in Photos that you make a copy of it elsewhere. You will need to continue to do this in the future anytime you have an important image or video. For example, you could upload any very important images or video to a Google Drive folder by using the Google Drive app or back all photos and videos up using the Google Photos app.
Disabling the backup of Photos will not delete images or video from your iPad. However, if you have not backed up your images and videos elsewhere, everything in Photos on your iPad will be gone forever if you have a problem on your iPad that requires resetting it (or your iPad is lost or severely damaged).
You can check how much backup space an app is using or disable backup for any app on your iPad using Settings > iCloud > Storage > Manage Storage > Backups / This iPad > Backup Options.
Option C
With your parent's permission, purchase more iCloud space for your Apple ID. As of November 2017, Apple sells an extra 50 GB of storage for $0.99 a month and an extra 200 GB of storage for $2.99/month. See iCloud storage pricing for the latest prices. You can purchase an upgrade using a credit card under Settings > iCloud > Storage > Buy More Storage.
If you would like help with any of the above, you can bring your iPad to the Taub Technology Center in the Library anytime between 8:00 AM and 4:00 PM on a regular school day.