Check out Google Workspace formerly called Google Suite
Google Drive is your storage space for all your files.
You can organize, share and collaborate in Drive
Keyboard short cuts using the Chrome Omni/Address bar
Downloading and Converting files - click here for the step b step tutorial.
Sometimes you may need to share a folder of files with your classroom teacher.
Create the folder, set the sharing permissions add people to share, copy the link and add folder link to your Google Classroom assignment.