Are you utilizing the free 'Home By Me' software at https://home.by.me for your interior design class? Not yet but want to get started? Here's a tutorial for you and your students walking them through how to use the site. The tutorial gets them set up with a free account and teaches them how to start making projects. It also asks them to do a few things with a practice room - practicing how to make walls, put in furniture, add windows, etc.