This is an open-education resource, like everything else on this site. It is a step-by-step lighting design project packaged as a PowerPoint file. The PowerPoint file can be downloaded here: https://scenicandlighting.com/downloads/Light_Plot_Assignment.pptx
Your students are instructed to edit the PowerPoint slides. They will be tasked to locate images of lighting online to be used as references. This is a beginner-level lighting design. It includes a link to a virtual swatch-book of lighting colors as well as links to some of the other labs included on this site.
Rather than drafting a light plot, students create a color key and a preliminary plot using icons embedded in the PowerPoint.