Have your students use Pixlr to create their own Time magazine cover using the free online image editing site, Pixlr.
While this lesson can be completed on almost any device that can browse the Web, it is ideally suited for students using Chromebooks as they cannot install desktop editing programs like GIMP and Photoshop.
The screencast is indexed, so you can take students to a specific point each day and/or they can easily return to a previous chapter to go over a step again.
You can view the screencast or many others on my YouTube Channel.