Creating and Applying the Golden Spiral in Digital Media
This is an assignment that I haven't done for a couple of years, so you may need to adapt the instructions on making a custom shape in PS to the latest version of CC.
This is a fun project. Yo teach my students about the Golden Proportion, I first show them the first 15 minutes of the incredibly outdated but still fun cartoon: "Donald Duck in Mathemagic Land." Here's the link:
We talk about the golden proportion and where it can be found, I show them the above video. I then have them create their own golden spiral in Adobe Illustrator (which nobody ever gets perfect, but encourage them to do their best.)
Then they copy it and paste it into Photoshop, make 8 versions of a custom shape with it (one version for each possible variation, all of them constrained) and have them apply it to various famous works of art. (Great Wave of Kanagawa is a good one. So is Van Gogh's Starry Night) Then I have them find other images to apply them to and some of their own work. We then have a discussion about what they've discovered. It's great for photography especially, since so much emphasis for beginners is the rule of thirds.