If you need to take a screenshot on a Chromebook, watch this video to learn how.
Click Here for directions from Google on how to use the Chromebook camera.
If your student needs to take a picture of something in the real world, you can help them use their Chromebook to do that. Check out this video to find out how.
If you have an iPhone, you can use your Notes app to take a picture and turn it into a PDF. Check out this website for step-by-step directions: Click Here
Now that you know how to take a picture, watch this video to learn how to upload that picture into Google Classroom.