Lisa,
You question was a little cut off but I'm going to assume you are asking about how to add a profile picture. Here is a guide about how to do so from a computer. How do I add a profile picture in my user account as a student? (it says student but it's the same process if you are a teacher). I've added links below to the process on mobile with the Canvas Student App.
How do I set a profile picture in the Student app on my iOS device?
https://community.canvaslms.com/docs/DOC-13633-18555200213
Rick
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