Slides is a Google tool similar to PowerPoint. It allows users to create slideshows for presentation from any internet browser. Once signed into your Google account you can access Presentation via Drive.
How to Create a Google Slides Presenation
Once you have logged into your Google Drive account you will see a red new button in the top left hand corner. If you click on the 'New' button you will be given a choice of creating a few different types of files. The sixth option will be Slides. Once you click on the Slides button a new tab will be created with your new Google Slide.