Yes, you can! As long as you have a G Suite account or  Gmail account, Google Slides is a free app and can easily be accessed without Google Classroom. All you have to do is open up a Google Chrome browser and look for the App Launcher icon. It will be a grid of nine small grey dots located in the top right of the browser. This icon is nicknamed “The waffle” by some because it is shaped similarly to a waffle. Once you click on the App Launcher icon, a menu of Google apps will appear. You will see the yellow icon for Google Slides. Click on it, and a new slideshow document will open for you to use. 

It will look like this:

If you are trying to give access to Slides to someone who does not have a Google account, you can open a new Slides document, then go to File and click Share. Or you can just click on the yellow “Share” icon in the top right corner.

A pop-up will appear and on the “Get link” section, click on “copy link”.  A link to the slideshow will automatically be copied.

You then can paste the link into an email and when the recipient goes to click on the link, they will be directed to request permission from you to open it. You will receive their request through email and can accept it. Now they will have access to the Google Slides sent to them.

To turn in an assignment, learners will have to either email you the file or send you the link of their completed work. They also can click on the ‘Share’ button in the top right corner and enter your email address and it will be sent to you. It will appear on your Drive under “Shared with me.”