Embedding Google Slides Presentation in a Moodle Classroom

Upload your Powerpoint presentation to Google Drive;

Click to open the file in Google Drive;

Click to "Open in Google Slides;"

Click "Slides"

Click "File - Publish to the Web"

Click "Publish"

Click "Embed"

Change the slide size to "Small" (which makes it easier to view on mobile devices)

Copy the code for the <iframe src....

Navigate to the page where the slides will be embedded, open the html editor (using the </> button in the toolbar)

Paste the code 

Click "Save"

A frame will show the slides embedded in the page. Controls allow individual navigate and the animations and transitions are displayed as well. If videos have been inserted after the presentation was converted to Slides, those will play in this as well.