Would this subject make an interesting mSchool course? Perhaps fall-under our larger "Design Thinking" video series?
From the Edudemic article referenced above:
So, say for example, you set your pupils a project where you’ve ask them to design a web page, or a poster campaign, you could get them to create a mood board to demonstrate the flow of their work and how they aim to achieve the final piece of work. It could be a very effective time saver in the creative process, as many issues can be solved right away (or at least eased) – if perhaps you don’t think one of your pupil’s ideas is going to work for example, you can work with them to come up with an alternative option.