Using Google Drive to store your files means that you can access them from just about anywhere using just about any device. Because you Carmel Clay Schools Google account is a part of G Suite for Education, you have unlimited storage. You can also store all of your Office documents, PDFs, and audio/video files.
For a guide on how to move your files from your computer to your Google Drive, check out this step-by-step video. If you want to keep your Office files (Word, Excel, PowerPoint, etc.) in their original format, be sure to check your Drive settings and make sure that 'Convert uploaded files to Google Docs editor format' is unchecked.