Ever wanted to see how much space you have filled on Google's servers? Ask no more! As a Google Apps for Education user you have access to UNLIMITED SPACE. You computer might tell you that you have used 1% of 10TB, but in reality, you have as much as you need.
The Google Drive Sync application that might be installed on your computer does MIRROR what is in your Google Drive folder, so be careful about filling up your hard drive. For more information on how the application works, check out this article.
Remember that 1 gigabyte is 1,024 megabytes.
Visit https://www.google.com/settings/storage to see how much you have used.