Pages
Pages can display text, images, sound, video, web links, and embedded code (such as Google maps, calendars, etc.) or any combination of these.
Compared to uploading the same content in separate files using the File and/or Folder resources, pages are generally more accessible to mobile device users, and they are easier to update.
If you have a large amount of content to add to your course, it may be best to use a Book instead of a single Page.