For my Intro to Graphic Design classes' second Photoshop assignment, I focused on studio lighting, Photoshop's selection tools, and typography. We completed a brief tutorial together on each selection tool and how it can be applied before jumping into the final project. I then randomly assigned each student a location around the world. After compiling research and downloading fair use high resolution images from a class-wide Pixabay account, we had a photoshoot during which the students photographed each other posing as if they were in their chosen background images. They then used Photoshop's selection tools to remove themselves from the original and insert themselves into the new background image. Each student created a set of 5 postcards illustrating themselves visiting their assigned location overlaid with typical postcard greeting text.
I wasn't able to find the exact references I used for studio lighting techniques, but Phlearn.com is a great resource for both Photoshop and photography techniques if you're ever in need of one.
I was definitely lucky that my students were willing to humor me when I asked them to pose with nothing in front of a blank backdrop, but I think the resulting cards are so fun. One of my students even used them to trick her relatives into thinking she had traveled abroad which I think signifies a job well done on her part.