How do I post readings (either pdfs or html links) or PowerPoint presentations to Canvas? Where do they go?
Documents can go many different places in Canvas, depending on your need, but one specific area of Canvas is designed to display documents and files to students in an organized manner, and that is Modules. You can learn more at How do I add assignment types, pages, and files as module items?
Since you are new at course design and building in Canvas, you might also benefit from reading a blog I started awhile back at Share UDL Course Design Tips, Tricks, and Techniques which explains module structure to a certain degree.
Addendum: I just noted that you included HTML and/or URLs in your inquiry, and you can learn more about these atHow do I add an external URL as a module item?
I hope this is helpful,
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